Lab Day and Time: Instructions. 1. Do not open the exam until you are told to start.

Size: px
Start display at page:

Download "Lab Day and Time: Instructions. 1. Do not open the exam until you are told to start."

Transcription

1 Name: Lab Day and Time: Instructions 1. Do not open the exam until you are told to start. 2. This exam is closed note and closed book. You are not allowed to use any outside material while taking this exam. 3. Use the spaces provided to write down your answers. To receive full credit, you must show all work. Do not write answers on any other pieces of paper. If you need more room, write on the back of the exam and be sure to include a note describing where the work is located. 4. When solving numerical problems, make sure you include the proper units in your final answer. 5. If a question asks for a response in sentence or paragraph form, make sure you respond in that format. 6. Useful data for the exam and a periodic table are provided on the last page of the exam. Carefully tear out these sheets if you wish. Page # Points possible Points awarded Attendance 3 In class EC 2 Total 100 1

2 Multiple Choice Unless otherwise directed, choose the single best answer for each question. Please use the space provided to do your calculations. Make sure your answers have the proper number of significant figures. Each question in the multiple choice section is worth 3 points. 1. A sample of matter has a volume of µl, what is the volume in kl? a x10 4 kl b x10-8 kl c x10 10 kl d x10-11 kl 2. How many significant figures are in the number x10 15? a. 21 d. 5 b. 8 c How many significant figures should be in the answer to the calculation shown below? a. 1 d. 4 b. 2 e = 4. How many significant figures should be in the answer to the calculation shown below? a. 1 d. 4 b. 2 e The SI unit for mass is. a. g b. lb c. m d. kg 2

3 6. The equation shown below can be used to calculate the amount of energy absorbed or released by a chemical during a chemical reaction. Use the information below to calculate the amount of energy absorbed during a chemical reaction. How many significant figures should be in your answer? Energy Absorbed = m x c x T m = mass = g c = specific heat = T = Temperature difference = T 2 -T 1 a. 1 T 2 = ºC b. 2 T 1 = ºC d. 4 e If ethanol has a density of g/ml, what is the volume of 82.0 mg of ethanol? a ml b ml c ml d. 1.04x10 5 ml 8. Express 96400x10 6 in standard scientific notation. a x10 2 b. 9.64x10 2 c x10 10 d. 9.64x The scientific method involves: I) observations III) elementation II) theories IV) experimentation a. I, II, III d. II, III, IV b. I, III e. I, II, III, IV c. I, II, IV 3

4 10. How many significant figures should be in the answer to the calculation shown below? ( 2. 30x10 ) 2. 4? a. 1 b. 2 d. 4 e Which quantity of subatomic particles determines the identity of an atom? a. The number of protons. b. The number of electrons. c. The number of neutrons. d. The number of nuclei. Use the diagrams below to answer the following three questions about a sample of matter. Assume that the black and grey balls represent different elements and that if they are touching each other they are connected/bonded to each other. Also assume that each box represents a different physical state. A B 12. The matter in box A would best be classified as a. a. pure element d. heterogeneous mixture b. pure compound e. both a pure element and a pure compound c. homogeneous mixture 13. During the transition from box A to box B, what happened to the kinetic energy of the particles? a. It increased. b. It decreased. c. It remained constant. 14. Under normal conditions (i.e. the temperature and pressure of the classroom right now), a sample of matter is best represented by box B. How do the attractive forces of the particles contained in this sample of matter compare to those of water particles under the same conditions? a. They are stronger than those of water particles. c. They are the same strength as those of water particles. b. They are weaker than those of water particles. 4

5 15. The element in the upper right corner of the periodic table. a. is a metal b. is a metalloid c. is an alkali metal d. is a halogen e. is a noble gas 16. Each box below represents a sample of matter. In the diagrams, assume each different ball represents a different element. When the transition from box A to box B occurs, what happens? a. A chemical change. b. A physical change. c. Nothing changes. A. B. 17. How many significant figures should be in the answer to the calculation shown below? x10 588x a. 1 b. 2 d. 4 e A sample of matter has a volume of km 3, what is the volume in cm 3? a x10 6 cm 3 b cm 3 c x10 13 cm 3 d x10 16 m The scientist whose alpha particle scattering experiment led him to conclude that the nucleus of an atom contains a dense center of positive charge is? a. J.J. Thomson d. William Thomson b. Lord Kelvin e. James Chadwick c. Ernest Rutherford 20. Which of the following has the most similar chemical properties to Tungsten? a. Mo c. Zr e. Mn b. Se d. In 5

6 21. Fill in the missing information into the table. (10 points) Element Name Element Symbol Sn Potassium Cl Silver Mo 22. For the following questions, fill in the blank with a word, phrase, symbol, or number that best completes the sentence. Put your answer in the column on the right. (9 points) a. The formula for the compound formed from sodium and nitrogen is. b. The absolute uncertainty associated with the measurement shown below is ml c. The elemental notation for the neutral atom that contains 26 electrons and 30 neutrons is. d. The formula of the compound that contains the numbers of atoms shown below is i.) and it is a/an ii.) (ionic or molecular) compound. 2 hydrogen atoms 1 carbon atom 3 oxygen atoms i.) ii.) 6

7 23. a.) A friend of yours wants to make a bid on ebay for an 8.98x10-8 mile 3 sample of Pepsi. However, the units of volume are weird and your friend is having difficulty converting it to something that makes sense. So, they asked for your help. What is that volume in liters? You must use dimensional analysis to receive full credit. (5 points) b.) Is this a volume that can easily be stored at their house? (1 point) 24. On the left hand side of the arrow below, draw a picture of the calcium (Ca) atom. Assume the calcium atom has 25 neutrons. On the right hand side of the arrow, draw a picture of the ion that calcium forms. In your diagrams, include the location and number of the protons, neutrons, and electrons. Label the nucleus and make sure the relative sizes of the atom and ion are accurate. Under the ion, state whether it is a cation or anion. (5 points) 25. If you were going to draw pictures of two different isotopes of calcium, what would be different? (2 points) 7

8 26. My wife and I were in Temecula over the weekend for a wedding. One evening, we decided to try our luck at the Pechanga Casino. While we were playing the slots, the person next to us won 2.500x10 15 ng of quarters from an old slot machine! If one quarter has a mass of 5.67 g, how much money was won (express your answer in dollars)? You must use dimensional analysis to get full credit. (5 points) 8

9 Conversion Factors, Constants, and Periodic Table 1 m = yards 1 inch = 2.54 centimeters (exact) 12 inches = 1 ft (exact) 1 gallon = liters 1 mile = feet 1 pound = grams 1 ton = 2000 pounds (exact) 1 fl oz. = ml 1 dollar = 4 quarters (exact) 1 H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc (98) 44 Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po (209) 85 At (210) 86 Rn (222) 87 Fr (223) 88 Ra Ac Rf (261) 105 Db (262) 106 Sg (263) 107 Bh (262) 108 Hs (265) 109 Mt (266) 110 Uun (269) 111 Uuu (272) 112 Uub (277) Ce Pr Nd Pm (145) 62 Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Th Pa U Np (237) 94 Pu (244) 95 Am (243) 96 Cm (247) 97 Bk (247) 98 Cf (251) 99 Es (252) 100 Fm (257) 101 Md (258) 102 No (259) 103 Lr (260) 9

CHEM 114: Mid-course TEST Wednesday 23 rd March pm Answer ALL QUESTIONS

CHEM 114: Mid-course TEST Wednesday 23 rd March pm Answer ALL QUESTIONS NAME:. STUDENT ID N o. CHEM 114: Mid-course TEST Wednesday 23 rd March 2016 7.00 8.10pm Answer ALL QUESTIONS TIME MANAGEMENT: This examination is marked out of 60. An approximate marking scheme is provided

More information

All answers must use the correct number of significant figures, and must show units!

All answers must use the correct number of significant figures, and must show units! CHEM 10113, Quiz 2 September 7, 2011 Name (please print) All answers must use the correct number of significant figures, and must show units! IA Periodic Table of the Elements VIIIA (1) (18) 1 2 1 H IIA

More information

Atomic Structure.

Atomic Structure. Werner Heisenberg Atomic Structure http://www.science-class.net/8th_notes/8th_notes_mainpage.htm. John Dalton (766-844) thought that an atom is a sphere of matter that is the same throughout. 2. J.J. Thomson

More information

CHEM& 161 PLACEMENT EXAM PREPARATION PROBLEMS

CHEM& 161 PLACEMENT EXAM PREPARATION PROBLEMS CHEM& 161 PLACEMENT EXAM PREPARATION PROBLEMS CHEM& 161 is a course that requires prerequisite knowledge in math and chemistry. The purpose of the placement exam is to ensure that you are entering at a

More information

Chem 115 POGIL Worksheet - Week 4 Moles & Stoichiometry Answers

Chem 115 POGIL Worksheet - Week 4 Moles & Stoichiometry Answers Key Questions & Exercises Chem 115 POGIL Worksheet - Week 4 Moles & Stoichiometry Answers 1. The atomic weight of carbon is 12.0107 u, so a mole of carbon has a mass of 12.0107 g. Why doesn t a mole of

More information

Chem 115 POGIL Worksheet - Week 4 Moles & Stoichiometry

Chem 115 POGIL Worksheet - Week 4 Moles & Stoichiometry Chem 115 POGIL Worksheet - Week 4 Moles & Stoichiometry Why? Chemists are concerned with mass relationships in chemical reactions, usually run on a macroscopic scale (grams, kilograms, etc.). To deal with

More information

The Periodic Table and Periodic Law

The Periodic Table and Periodic Law The Periodic Table and Periodic Law Section 6.1 Development of the Modern Periodic Table In your textbook, reads about the history of the periodic table s development. Use each of the terms below just

More information

All answers must use the correct number of significant figures, and must show units!

All answers must use the correct number of significant figures, and must show units! CHEM 10113, Quiz 2 September 7, 2011 Name (please print) All answers must use the correct number of significant figures, and must show units! IA Periodic Table of the Elements VIIIA (1) (18) 1 2 1 H IIA

More information

1. Atomic Structure Review

1. Atomic Structure Review 1. Atomic Structure Review Element Name Calcium - 42 Mass Number (P+N) Mass Number (P+N) 42 20Ca 2 Charge (P vs. E) Atomic Number (P) Element Symbol Bohr Model of the Atom: Modern Quantum theory Electrons

More information

Electronic Stability & Periodic Table

Electronic Stability & Periodic Table Electronic Stability & Periodic Table Things at higher energy are less stable!! All living things are dependent on their ability to acquire energy from unstable things! The compounds in the food you eat

More information

Topic 3 Periodic Trends

Topic 3 Periodic Trends Topic 3 Periodic Trends Chapter 06 Trends on the Periodic Table Chapter 07 Relationships between the elements CHEM 10 T03D01 How are elements arranged Prior to 1735, only 12 elements were known to man

More information

Name (print legibly) Seat no. On my honor, I have neither given nor received unauthorized aid on this exam.

Name (print legibly) Seat no. On my honor, I have neither given nor received unauthorized aid on this exam. Exam 2 CHEM 1303.001 Name (print legibly) Seat no. Signed On my honor, I have neither given nor received unauthorized aid on this exam. Date 30 questions/3.33 points each Indicate the BEST answer for the

More information

The Periodic Table, Electron Configuration & Chemical Bonding. Lecture 7

The Periodic Table, Electron Configuration & Chemical Bonding. Lecture 7 The Periodic Table, Electron Configuration & Chemical Bonding Lecture 7 Electrons We will start to look at the periodic table by focusing on the information it gives about each element s electrons. How

More information

CHEM 108 (Fall-2006) Exam. 1 (Section 001) (103 pts)

CHEM 108 (Fall-2006) Exam. 1 (Section 001) (103 pts) CHEM 108 (Fall-2006) Exam. 1 (Section 001) (103 pts) Name: --------------------------------------------------------------------------, CLID # -------------------------------- LAST NAME, First (Circle the

More information

CHEM 10113, Quiz 7 December 7, 2011

CHEM 10113, Quiz 7 December 7, 2011 CHEM 10113, Quiz 7 December 7, 2011 Name (please print) All equations must be balanced and show phases for full credit. Significant figures count, show charges as appropriate, and please box your answers!

More information

HANDOUT SET GENERAL CHEMISTRY I

HANDOUT SET GENERAL CHEMISTRY I HANDOUT SET GENERAL CHEMISTRY I Periodic Table of the Elements 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 IA VIIIA 1 2 H He 1.00794 IIA IIIA IVA VA VIA VIIA 4.00262 3 Li 6.941 11 Na 22.9898

More information

PERIODIC TABLES: I. Directory, II. Traditional, III. Vertical, IV. Toxicity (LD 50 values), V. Native (elemental form)

PERIODIC TABLES: I. Directory, II. Traditional, III. Vertical, IV. Toxicity (LD 50 values), V. Native (elemental form) PERIODIC TABLES: I. Directory, II. Traditional, III. Vertical, IV. Toxicity (LD 50 values), V. Native (elemental form) Site developed by Steve Murov, Professor Emeritus of Chemistry, Modesto Junior College,

More information

Electron Configuration Activity

Electron Configuration Activity Electron Configuration Activity Purpose To find the relationship between electron configuration and organization of the periodic table. Materials Paper copy of the periodic table colored pencils or markers

More information

CHEM 108 (Spring-2008) Exam. 1 (105 pts)

CHEM 108 (Spring-2008) Exam. 1 (105 pts) CHEM 108 (Spring-2008) Exam. 1 (105 pts) Name: --------------------------------------------------------------------------, CLID # -------------------------------- LAST NAME, First (Circle the alphabet

More information

Atomic Structure & Elements

Atomic Structure & Elements Atomic Structure & Elements (Chapter 2: p 24-42, 46-48, 50-51. Problems (all 2.--): 3, 5b, 7, 15, 17, 19, 21, 23, 25, 27, 29, 63, 69 Picture of an Atom Nucleus Electron Cloud I. Dalton s Atomic Theory

More information

The Periodic Table of the Elements. The Periodic Table of the Elements QUIZ THURSDAY Oct 20

The Periodic Table of the Elements. The Periodic Table of the Elements QUIZ THURSDAY Oct 20 The Periodic Table of the Elements 1 18 1 2 H 2 13 14 15 16 17 He 1.0079 4.0026 3 4 5 6 7 8 9 10 Li Be B C N O F Ne 6.941 9.01218 10.811 12.011 14.0067 15.9994 18.9984 20.1797 11 12 13 14 15 16 17 18 Na

More information

Test of Academic Skills (TEAS)

Test of Academic Skills (TEAS) Test of Academic Skills (TEAS) Chemistry Topics Review January, 2014 Dr. Ben Tovrog General, Organic, and Biological Chemistry 1 2 3 Periodic Table of the Elements 1 H 1.008 2 He 4.003 3 Li 6.941 4 Be

More information

EXAM I Sample Exam 1-2 Dr. V. Williamson. FORM A is EXAM I AF, VERSION 2 (v2)

EXAM I Sample Exam 1-2 Dr. V. Williamson. FORM A is EXAM I AF, VERSION 2 (v2) FORM A is EXAM I AF, VERSION 2 (v2) 1. DO NOT TURN THIS PAGE UNTIL DIRECTED TO DO SO. 2. These tests are machine graded; therefore, be sure to use a No. 1 or 2 pencil for marking the answer sheets. 3.

More information

Blocks on the periodic table. Atomic weight: This is either a decimal number or a number in parenthesis.

Blocks on the periodic table. Atomic weight: This is either a decimal number or a number in parenthesis. 68 Blocks on the periodic table 11 Sodium 22.99 Atomic number: This is always a whole number. The periodic table is arranged by atomic number! Element symbol: A one or two letter abbreviation for the name

More information

1 Electrons and Chemical Bonding

1 Electrons and Chemical Bonding CHAPTER 1 1 Electrons and Chemical Bonding SECTION Chemical Bonding BEFORE YOU READ After you read this section, you should be able to answer these questions: What is chemical bonding? What are valence

More information

AUS-e-TUTE. Periodic Table Lessons and Activities. ausetute.com.au. Definition of Terms used in this publication: Crossword: Drill: Exam:

AUS-e-TUTE. Periodic Table Lessons and Activities. ausetute.com.au. Definition of Terms used in this publication: Crossword: Drill: Exam: 2012 AUS-e-TUTE Periodic Table Lessons and Activities Definition of Terms used in this publication: requires students to find and enter information, Interactive Learning Activity: then guides them through

More information

Metals, Non-Metals, Metalloids and the Periodic Table

Metals, Non-Metals, Metalloids and the Periodic Table Metals, Non-Metals, Metalloids and the Periodic Table Matter and Elements Matter- anything that has mass and takes up space Element- a pure substance that cannot be broken down into a simpler substance

More information

CLASS TEST GRADE 11. PHYSICAL SCIENCES: CHEMISTRY Test 6: Chemical change

CLASS TEST GRADE 11. PHYSICAL SCIENCES: CHEMISTRY Test 6: Chemical change CLASS TEST GRADE PHYSICAL SCIENCES: CHEMISTRY Test 6: Chemical change MARKS: 45 TIME: hour INSTRUCTIONS AND INFORMATION. Answer ALL the questions. 2. You may use non-programmable calculators. 3. You may

More information

Reporting Category 1: Matter and Energy

Reporting Category 1: Matter and Energy Name: Science Teacher: Reporting Category 1: Matter and Energy Atoms Fill in the missing information to summarize what you know about atomic structure. Name of Subatomic Particle Location within the Atom

More information

Secondary Support Pack. be introduced to some of the different elements within the periodic table;

Secondary Support Pack. be introduced to some of the different elements within the periodic table; Secondary Support Pack INTRODUCTION The periodic table of the elements is central to chemistry as we know it today and the study of it is a key part of every student s chemical education. By playing the

More information

CHEM Come to the PASS workshop with your mock exam complete. During the workshop you can work with other students to review your work.

CHEM Come to the PASS workshop with your mock exam complete. During the workshop you can work with other students to review your work. It is most beneficial to you to write this mock midterm UNDER EXAM CONDITIONS. This means: Complete the midterm in 1.5 hours. Work on your own. Keep your notes and textbook closed. Attempt every question.

More information

Evolving model of the atom

Evolving model of the atom Atomic Electron Configurations and Chemical Periodicity Evolving model of the atom 1803 (Dalton): All matter is composed of tiny, indivisible, indestructible particles called atom. 1903 (Thompson): Subatomic

More information

Chemical Bonding Many-Electron Atoms and the Periodic Table Experimental Measures of Orbital Energies Sizes of Atoms and Ions

Chemical Bonding Many-Electron Atoms and the Periodic Table Experimental Measures of Orbital Energies Sizes of Atoms and Ions Chapter 17 Many-Electron Atoms and Chemical Bonding 17.1 Many-Electron Atoms and the Periodic Table 17.2 Experimental Measures of Orbital Energies 17.3 Sizes of Atoms and Ions 17.4 Properties of the Chemical

More information

Chem 115 POGIL Worksheet - Week 10 Periodic Trends

Chem 115 POGIL Worksheet - Week 10 Periodic Trends Chem 115 POGIL Worksheet - Week 10 Periodic Trends Why? The size of an atom or ion and the attraction between the nucleus and the outermost electrons play important roles in determining the chemistry of

More information

NUCLEAR MODEL. Electron cloud. Electron cloud. Nucleus. Nucleus

NUCLEAR MODEL. Electron cloud. Electron cloud. Nucleus. Nucleus 37 NUCLEAR MODEL - Atoms are mostly empty space - NUCLEUS, at the center of the atom, contains protons and neutrons. This accounts for almost all the mass of an atom - Electrons are located in a diffuse

More information

Chemistry 143 Electron Configurations Dr. Caddell

Chemistry 143 Electron Configurations Dr. Caddell NAME: KEY Electron Configurations Write the complete (expanded) electron configurations and core (noble gas) electron configurations for the following elements. Use only this periodic table for reference.

More information

Categories of elements

Categories of elements Categories of elements METALS - good conductors of heat and electricity - almost all solids at room temperature (exception: Mercury - Hg - is liquid) - appearance: shiny, mirrored surface - mostly grey

More information

Ch 8 Atomic Electron Configuration and Chemical Periodicity

Ch 8 Atomic Electron Configuration and Chemical Periodicity Ch 8 Atomic Electron Configuration and Chemical Periodicity Pauli Exclusion principle No two electrons in an atom have the same set of quantum numbers. If two electrons occupy the same orbital, they must

More information

Replacement of Chromium(VI)

Replacement of Chromium(VI) 1 Replacement of Chromium(VI) in Passivations on Zinc And Zinc Alloys Patricia Preikschat,, D-64673 Zwingenberg Topics: what are we searching for? properties of hexavalent passivation films criteria for

More information

8. Relax and do well.

8. Relax and do well. CHEM 1314.03 Exam III John III. Gelder November 20, 1997 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 9 different pages. The last three pages include a periodic table,

More information

Thermodynamics explores the connection between energy and the EXTENT of a reaction but does not give information about reaction rates (Kinetics).

Thermodynamics explores the connection between energy and the EXTENT of a reaction but does not give information about reaction rates (Kinetics). Thermodynamics explores the connection between energy and the EXTENT of a reaction but does not give information about reaction rates (Kinetics). Rates of chemical reactions are controlled by activation

More information

CHEMISTRY PAPER 2. ( S a m p l e P a per)

CHEMISTRY PAPER 2. ( S a m p l e P a per) HONG KONG EXAMINATIONS AND ASSESSMENT AUTHORITY HONG KONG DIPLOMA OF SECONDARY EDUCATION EXAMINATION CHEMISTRY PAPER 2 ( S a m p l e P a per) Time allowed: 1 hour This paper must be answered in English.

More information

8. Relax and do well.

8. Relax and do well. CHEM 1314 3;30 pm Theory Exam III John III. Gelder November 13, 2002 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 8 different pages. The last page include a periodic

More information

Lesson Plan Adopt an Element Name: Pablo Garcia Mentor:

Lesson Plan Adopt an Element Name: Pablo Garcia Mentor: T o g o d i r e c t l y t o a l e s s o n, c l i c k o n e o f t h e f o l l o w i n g l i n k s : A d o p t a n E l e m e n t E l e m e n t a n d A t o m A c t i v i t y F O R M A T I V E A S S E S S

More information

Atomic structure. The subatomic particles. - a small, but relatively massive particle that carres an overall unit POSITIVE CHARGE

Atomic structure. The subatomic particles. - a small, but relatively massive particle that carres an overall unit POSITIVE CHARGE 35 Atomic structure - Until the early 20th century, chemists considered atoms to be indivisible particles. - The discovery of SUBATOMIC PARTICLES changed the way we view atoms! PROTON NEUTRON ELECTRON

More information

SHELLS, SUBSHELLS, AND ORBITALS. - Higher shells can hold more electrons than lower shells!

SHELLS, SUBSHELLS, AND ORBITALS. - Higher shells can hold more electrons than lower shells! 155 SHLLS, SUBSHLLS, AND ORBITALS - Bohr's model predicted that energy levels (called SHLLS) were enough to describe completely how electrons were arranged around an atom. But there's more to it! SHLL:

More information

Matter is classified into solids, liquids and gases. Matter can also be classified into elements, compounds and mixtures based on composition Fe, Ag,

Matter is classified into solids, liquids and gases. Matter can also be classified into elements, compounds and mixtures based on composition Fe, Ag, Matter is classified into solids, liquids and gases. Matter can also be classified into elements, compounds and mixtures based on composition Fe, Ag, Au, Cu, Iron element is made of iron atoms. Silver

More information

Hylleraas-configuration-interaction nonrelativistic energies for the 1 S ground states of the beryllium isoelectronic sequence. Supplemental Material

Hylleraas-configuration-interaction nonrelativistic energies for the 1 S ground states of the beryllium isoelectronic sequence. Supplemental Material Hylleraas-configuration-interaction nonrelativistic energies for the 1 S ground states of the beryllium isoelectronic sequence. Supplemental Material James S. Sims National Institute of Standards and Technology

More information

Chapter 3 Applying Your Knowledge- Even Numbered

Chapter 3 Applying Your Knowledge- Even Numbered Chapter 3 Applying Your Knowledge- Even Numbered 2. Elements in a specific compound are always present in a definite proportion by mass; for example, in methane, CH 4, 12 g of carbon are combined with

More information

3. When Q > K a reaction will do the following: (a) go backwards (b) go forwards (c) no change (d) go back and forth

3. When Q > K a reaction will do the following: (a) go backwards (b) go forwards (c) no change (d) go back and forth Name CH302H Exam 1 Spring 2013 Multiple Choice Neatly write your choice in the blank provided. (3 pts each) E A 1. The heat for this reaction at constant temperature and pressure CO 2 (g) C (s, graphite)

More information

Chem 111 9:05a section Evening Exam #1

Chem 111 9:05a section Evening Exam #1 Page of 5 Exam Name: Chem 9:05a section Evening Exam # This exam is composed of 0 questions, 5 of which require mathematics that might require a calculator. Go initially through the exam and answer the

More information

Chromium A case study. Chromium A case study. Electrolytic chromium-plating

Chromium A case study. Chromium A case study. Electrolytic chromium-plating 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La

More information

PREDICTING CHARGES. - for many main group elements, you cah predict the charge using the periodic table! IA. He VIA VIIA Li Be B C N O F Ne

PREDICTING CHARGES. - for many main group elements, you cah predict the charge using the periodic table! IA. He VIA VIIA Li Be B C N O F Ne PREDICTING CHARGES - how do you figure out the charge that an element might take when it becomes an ion? - for many main group elements, you cah predict the charge using the periodic table! IA VIIIA H

More information

Lewis Dot Structures. Reading: Gray: (2-1), (2-7), (2-11) to (2-13) OGN: (3.2) to (3.5)

Lewis Dot Structures. Reading: Gray: (2-1), (2-7), (2-11) to (2-13) OGN: (3.2) to (3.5) Lewis Dot Structures Reading: Gray: (2-1), (2-7), (2-11) to (2-13) OGN: (3.2) to (3.5) Periodic Chemical Reactivity Reactions with hydrogen to form hydrides: Li vs. (notice electronegativity difference)

More information

Periodic Table & Periodic Law

Periodic Table & Periodic Law Periodic Table & Periodic Law Organizing the Elements A few elements, such as gold and copper, have been known for thousands of years - since ancient times Yet, only about 13 had been identified by the

More information

Periodic Table of the Elements

Periodic Table of the Elements Periodic Table of the Elements 1A 8A 1 18 1 2 H 2A 3A 4A 5A 6A 7A He 1.0079 2 13 14 15 16 17 4.0026 3 4 5 6 7 8 9 10 Li Be B C N O F Ne 6.941 9.0122 10.811 12.011 14.0067 15.9994 18.9984 20.1797 11 12

More information

Atomic Physics VI. Greg Anderson Department of Physics & Astronomy. December Northeastern Illinois University

Atomic Physics VI. Greg Anderson Department of Physics & Astronomy. December Northeastern Illinois University Atomic Physics VI Greg Anderson Department of Physics & Astronomy Northeastern December 2010 c 2004-2010 G. Anderson Modern Physics I slide 1 / 30 Overview c 2004-2010 G. Anderson Modern Physics I slide

More information

Lewis dot structures for molecules

Lewis dot structures for molecules 1 Lewis dot structures for molecules In the dot structure of a molecule, - SHARED valence electrons are shown with dashes - one per pair. - UNSHARED valence electrons ("lone pairs") are represented by

More information

INTRODUCTION TO MEASUREMENTS

INTRODUCTION TO MEASUREMENTS INTRODUCTION TO MEASUREMENTS Introduction: In the first three experiments you will learn how to use equipment that to measure length, mass, and volume. You will apply the rules about significant figures

More information

ELECTRONEGATIVITY TRENDS - You may look up elecronegativity data in tables, but it helps to know trends! INCREASING ELECTRO-

ELECTRONEGATIVITY TRENDS - You may look up elecronegativity data in tables, but it helps to know trends! INCREASING ELECTRO- 198 ELECTRONEGATIVITY TRENDS - You may look up elecronegativity data in tables, but it helps to know trends! INCREASING ELECTRO- IA IIA IIIA NEGATIVITY IVA VA VIA VIIA 2 Li Be B C N O F 3 Na Mg IIIB IVB

More information

Chemistry 51 Exam #3. Name KEY May 19, 2003

Chemistry 51 Exam #3. Name KEY May 19, 2003 Chemistry 51 Exam #3 Name KEY May 19, 2003 This exam has nine (9) questions. Please check before beginning to make sure no questions are missing. All scratch work must be done on the attached blank pages,

More information

CHEM 108 (Fall-2004) Final Exam (100 pts)

CHEM 108 (Fall-2004) Final Exam (100 pts) CHEM 108 (Fall-2004) Final Exam (100 pts) Name: --------------------------------------------------------------------------, CLID # -------------------------------- LAST NAME, First (Circle the alphabet

More information

Chemistry 5 Test 1. You must show your work to receive credit PERIODIC TABLE OF THE ELEMENTS. 5 B 10.81 13 Al 26.98

Chemistry 5 Test 1. You must show your work to receive credit PERIODIC TABLE OF THE ELEMENTS. 5 B 10.81 13 Al 26.98 Chemistry 5 Test 1 Name: You must show your work to receive credit PERIODIC TABLE OF THE ELEMENTS 1A 1 H 1.008 2A 3A 4A 5A 6A 7A 3 Li 6.941 11 Na 22.99 19 K 39.10 37 Rb 85.47 55 Cs 132.9 87 Fr (223) 4

More information

(optional Vernier calipers) Metal piece of irregular shape, 50 ml graduated cylinder Ruler, metal bar and cylinder (obtained from instructor)

(optional Vernier calipers) Metal piece of irregular shape, 50 ml graduated cylinder Ruler, metal bar and cylinder (obtained from instructor) EXPERIMENT 1, Part 1: SOLIDS Introduction: Volume can be measured directly with a volumetric device such as a graduated cylinder or calculated from dimensions if one has a regular geometric shape such

More information

8. Relax and do well.

8. Relax and do well. CHEM 1314.03 Exam III John III. Gelder ovember 20, 1997 ame KEY TA's ame Lab Section ISTRUCTIS 1. This examination consists of a total of 9 different pages. The last three pages include a periodic table,

More information

TINA AKINYI CHEM 177 EXAM 3 REVIEW 4/12/15

TINA AKINYI CHEM 177 EXAM 3 REVIEW 4/12/15 TINA AKINYI CHEM 177 EXAM 3 REVIEW 4/12/15 TIPS FOR YOUR EXAM - SPEED AND ACCURACY WILL SAVE YOU - DON T GUESS UNLESS YOU HAVE TO - YOU RE SMART - YOU CAN DO THIS - DON T BE ANXIOUS OR NERVOUS - A FEW

More information

ELECTRON CONFIGURATION (SHORT FORM) # of electrons in the subshell. valence electrons Valence electrons have the largest value for "n"!

ELECTRON CONFIGURATION (SHORT FORM) # of electrons in the subshell. valence electrons Valence electrons have the largest value for n! 179 ELECTRON CONFIGURATION (SHORT FORM) - We can represent the electron configuration without drawing a diagram or writing down pages of quantum numbers every time. We write the "electron configuration".

More information

Chemistry 5 Final. Name(printed): Note: 10 points will be assigned if you print your name so I can read it effortlessly. Print legibly!

Chemistry 5 Final. Name(printed): Note: 10 points will be assigned if you print your name so I can read it effortlessly. Print legibly! Chemistry 5 Final ame(printed): ote: 10 points will be assigned if you print your name so can read it effortlessly. Print legibly! You must show your work to receive credit PERODC TABLE OF TE ELEMETS 1A

More information

PERIODIC TABLE OF GROUPS OF ELEMENTS Elements can be classified using two different schemes.

PERIODIC TABLE OF GROUPS OF ELEMENTS Elements can be classified using two different schemes. 1 PERIODIC TABLE OF GROUPS OF ELEMENTS Elements can be classified using two different schemes. Metal Nonmetal Scheme (based on physical properties) Metals - most elements are metals - elements on left

More information

SHELLS, SUBSHELLS, AND ORBITALS. - Higher shells can hold more electrons than lower shells!

SHELLS, SUBSHELLS, AND ORBITALS. - Higher shells can hold more electrons than lower shells! 155 SHLLS, SUBSHLLS, AND ORBITALS - Bohr's model predicted that energy levels (called SHLLS) were enough to describe completely how electrons were arranged around an atom. But there's more to it! SHLL:

More information

Atomic Spectroscopy Basics. Fergus Keenan Thermo Fisher Scientific

Atomic Spectroscopy Basics. Fergus Keenan Thermo Fisher Scientific Atomic Spectroscopy Basics Fergus Keenan Thermo Fisher Scientific The Periodic Table; Our Common Language H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br

More information

3.06 Periodic Table and Periodic Trends

3.06 Periodic Table and Periodic Trends 3.06 Periodic Table and Periodic Trends Dr. Fred Omega Garces Chemistry 100, Miramar College 1 3.06 Periodic Table and Periodic Trend The Periodic Table and the Elements What is the periodic table? What

More information

CHEM-100-chapter-2 Multiple Choice Identify the choice that best completes the statement or answers the question.

CHEM-100-chapter-2 Multiple Choice Identify the choice that best completes the statement or answers the question. CHEM-100-chapter-2 Multiple Choice Identify the choice that best completes the statement or answers the question. 1.Which metric prefix means 1 10-6? a. milli b. kilo c. pico d. micro e. nano 2.Which metric

More information

B) atomic number C) both the solid and the liquid phase D) Au C) Sn, Si, C A) metal C) O, S, Se C) In D) tin D) methane D) bismuth B) Group 2 metal

B) atomic number C) both the solid and the liquid phase D) Au C) Sn, Si, C A) metal C) O, S, Se C) In D) tin D) methane D) bismuth B) Group 2 metal 1. The elements on the Periodic Table are arranged in order of increasing A) atomic mass B) atomic number C) molar mass D) oxidation number 2. Which list of elements consists of a metal, a metalloid, and

More information

EXPERIMENT 4 The Periodic Table - Atoms and Elements

EXPERIMENT 4 The Periodic Table - Atoms and Elements EXPERIMENT 4 The Periodic Table - Atoms and Elements INTRODUCTION Primary substances, called elements, build all the materials around you. There are more than 109 different elements known today. The elements

More information

1 Arranging the Elements

1 Arranging the Elements CHAPTER 5 1 Arranging the Elements SECTION The Periodic Table BEFORE YOU READ After you read this section, you should be able to answer these questions: How are elements arranged on the periodic table?

More information

Element Electronic structure W 2,5 X 2,7 Y 2,8,8 Z 2,8,8,1. (b) Which two Groups of the periodic table do not contain any non-metals?

Element Electronic structure W 2,5 X 2,7 Y 2,8,8 Z 2,8,8,1. (b) Which two Groups of the periodic table do not contain any non-metals? The periodic table 1. Use the periodic table on the Data Sheet to answer these questions. The table below gives the electronic structures of four elements, W, X, Y and Z. Element Electronic structure W

More information

Condensation in the Solar Nebula and the Cosmochemical Classification of the Elements. EPS 250 SBJ-Spring 2011

Condensation in the Solar Nebula and the Cosmochemical Classification of the Elements. EPS 250 SBJ-Spring 2011 Condensation in the Solar Nebula and the Cosmochemical Classification of the Elements EPS 250 SBJ-Spring 2011 Cosmochemical and Geochemical Classification of the Elements In cosmochemistry the elements

More information

chemical bonds example: electronic interaction between two atoms

chemical bonds example: electronic interaction between two atoms chemical bonds example: electronic interaction between two atoms 3 =? 3 problem: how can a chemical bond connect two atoms and overcome the electrostatic repulsion? 3 solutions nature has found to bind

More information

Chapter 2 Atoms and the Periodic Table

Chapter 2 Atoms and the Periodic Table Chapter 2 1 Chapter 2 Atoms and the Periodic Table Solutions to In-Chapter Problems 2.1 Each element is identified by a one- or two-letter symbol. Use the periodic table to find the symbol for each element.

More information

- most of the elements in this group are metals, but there is also a semiconductor (boron).

- most of the elements in this group are metals, but there is also a semiconductor (boron). 190 GROUP IIIA valence electrons: - most of the elements in this group are metals, but there is also a semiconductor (boron). - The oxides of these elements are of the form - oxides of boron are acidic

More information

3.01 Elements, Symbols and Periodic Table

3.01 Elements, Symbols and Periodic Table .0 Elements, Symbols and Periodic Table Dr. Fred O. Garces Chemistry 00 Miramar College.0 Elements, symbols and the Periodic Table January 0 The Elements: Building block of Matter The periodic table of

More information

AP TOPIC 3: Electronic Configuration

AP TOPIC 3: Electronic Configuration AP TOPIC 3: Electronic Configuration Line emission spectra for hydrogen Neils Bohr originally formulated the idea of the atom being comprised of a dense nucleus (containing protons and neutrons) being

More information

1 Arranging the Elements

1 Arranging the Elements CHAPTER 12 1 Arranging the Elements SECTION The Periodic Table BEFORE YOU READ After you read this section, you should be able to answer these questions: How are elements arranged on the periodic table?

More information

Test of Academic Skills (TEAS)

Test of Academic Skills (TEAS) Test of Academic Skills (TEAS) Chemistry Topics Review Dr. Ben Tovrog General, Organic, and Biological Chemistry 1 2 3 Periodic Table of the Elements 1 H 1.008 2 He 4.003 3 Li 6.941 4 Be 9.012 11 Na 22.99

More information

ATOMIC THEORY. Name Symbol Mass (approx.; kg) Charge

ATOMIC THEORY. Name Symbol Mass (approx.; kg) Charge ATOMIC THEORY The smallest component of an element that uniquely defines the identity of that element is called an atom. Individual atoms are extremely small. It would take about fifty million atoms in

More information

Chem :10a section Evening Exam #3v3

Chem :10a section Evening Exam #3v3 Page 1 of 6 Chem 111 10:10a section Evening Exam #3v3 This exam is composed of 25 questions. Go initially through the exam and answer the questions you can answer quickly. Then go back and try the ones

More information

3.05 Atomic Structure and Electronic Configuration

3.05 Atomic Structure and Electronic Configuration .05 Atomic Structure and Electronic Configuration Arranging the electrons in an atom Learning Objectives/Terminology- Pauli Exclusion Principle Aufbau Hund s Rule Diamagnetism/Paramagnetism Ne-Va-S-P Dr.

More information

periodic trends notes.notebook December 03, 2012 The Periodic Table

periodic trends notes.notebook December 03, 2012 The Periodic Table The Periodic Table I. Periodic Law A. Mendeleev (1860): When the elements are placed in order by increasing atomic mass, their properties repeat in a periodic way. B. Moseley (1910): Changed the elements'

More information

The Nature of Chemistry

The Nature of Chemistry CHAPTER 1 The Nature of Chemistry Objectives You will be able to do the following. 1. Describe how science in general is done. 2. Given a description of a property of a substance, identify the property

More information

Chapter 11 The Nature of Covalent Bonding

Chapter 11 The Nature of Covalent Bonding Name Chapter 11 The Nature of Covalent Bonding There are two major types of bonds 1. Ionic 2. Covalent 1. Covalent bonds electrons are shared between atoms. a. polar covalent electrons are not shared equally

More information

Chem : Sept E1:Discussion Preparation. Solution Color

Chem : Sept E1:Discussion Preparation. Solution Color Chem.125-126: Sept.17-2 Preparation Pre-lab Report (p.6) for E2 completed Discussion Presentation for E1 completed Pre-lab reading and studies for E2 completed E1:Discussion Preparation Refer to the discussion

More information

UCC Chemistry Contest Chemistry 11

UCC Chemistry Contest Chemistry 11 UCC Chemistry Contest Chemistry 11 May 21, 2003 Time: 60 minutes Please follow the instructions below. We will send your teacher a report on your performance. Top performers are eligible for prizes. The

More information

100% ionic compounds do not exist but predominantly ionic compounds are formed when metals combine with non-metals.

100% ionic compounds do not exist but predominantly ionic compounds are formed when metals combine with non-metals. 2.21 Ionic Bonding 100% ionic compounds do not exist but predominantly ionic compounds are formed when metals combine with non-metals. Forming ions Metal atoms lose electrons to form +ve ions. Non-metal

More information

The Periodic Properties of the Elements. Department of Chemistry Pima Community College Tucson, AZ, USA

The Periodic Properties of the Elements. Department of Chemistry Pima Community College Tucson, AZ, USA The Periodic Properties of the Elements David A. Katz Department of Chemistry Pima Community College Tucson, AZ, USA Electron Configurations Lewis Dot Symbols Show the outermost electrons only 1 IA Oxidation

More information

FORM 3 CHEMISTRY TIME: 1h 30min

FORM 3 CHEMISTRY TIME: 1h 30min DIRECTORATE FOR QUALITY AND STANDARDS IN EDUCATION Department of Curriculum Management Educational Assessment Unit Track 3 Annual Examinations for Secondary Schools 2015 FORM 3 CHEMISTRY TIME: 1h 30min

More information

12B The Periodic Table

12B The Periodic Table The Periodic Table Investigation 12B 12B The Periodic Table How is the periodic table organized? Virtually all the matter you see is made up of combinations of elements. Scientists know of 118 different

More information

Chemistry CP Unit 2 Atomic Structure and Electron Configuration. Learning Targets (Your exam at the end of Unit 2 will assess the following:)

Chemistry CP Unit 2 Atomic Structure and Electron Configuration. Learning Targets (Your exam at the end of Unit 2 will assess the following:) Chemistry CP Unit 2 Atomic Structure and Electron Learning Targets (Your exam at the end of Unit 2 will assess the following:) 2. Atomic Structure and Electron 2-1. Give the one main contribution to the

More information

Elements, Compounds and Mixtures Science Junior Cert Quick Notes

Elements, Compounds and Mixtures Science Junior Cert Quick Notes Elements, Compounds and Mixtures Science Junior Cert Quick Notes Elements, Compounds and Mixtures CHEMISTRY The world is made up of a variety of substances. Some of these occur naturally in our environment,

More information

Periodic Table of the Elements

Periodic Table of the Elements Periodic Table of the Elements A 8A 8 2 2A 3A A A 6A A e.9 2 3 6.26 3 6 8 9 Li e N O F Ne 6.9 9.22.8 2..6.999 8.998 2.9 2 3 6 8 Na Mg 3 6 8 2 Al Si P S Ar 22.9898 2.3 3 6 8 9 2 26.98 28.8 3.938 32.66 3.2

More information