Question 1

Which of the following elements is both a nonmetal and a representative element?

Accepted Answer

A)  (9F) 
B)  (50Sn) 
C)  (79Au) 
D)  (92U) 
A)  (9F) 
B)  (50Sn) 
C)  (79Au) 
D)  (92U)

Question 2

Choose the appropriate electron configuration for an element that has electrons in six orbitals.

Accepted Answer

A)  1s22s22p63s23p6 
B)  1s22s22p63s23p4 
C)  1s22s22p63s1 
D)  1s22s22p5 
A)  1s22s22p63s23p6 
B)  1s22s22p63s23p4 
C)  1s22s22p63s1 
D)  1s22s22p5

Question 3

Which of the following statements concerning subatomic particles is correct?

Accepted Answer

A)  Four fundamental types exist, all of which are charged. 
B)  Four fundamental types exist, two of which are charged. 
C)  Three fundamental types exist, none of which are charged. 
D)  Three fundamental types exist, two of which are charged. 
A)  Four fundamental types exist, all of which are charged. 
B)  Four fundamental types exist, two of which are charged. 
C)  Three fundamental types exist, none of which are charged. 
D)  Three fundamental types exist, two of which are charged.

Question 4

Choose the appropriate pair of atoms that contain the same number of nucleons.

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 5

Characterize EACH of the following statements as being TRUE or FALSE and then indicate the collective true-false status using the choices provided. (1) All naturally occurring atoms of an element must have the same mass number.
(2) Protons and electrons carry the same amount of charge.
(3) An isotope of chlorine with A = 35 and Z = 17 contains more neutrons than protons.

Accepted Answer

A)  All three statements are true. 
B)  Two of the three statements are true. 
C)  Only one of the statements is true. 
D)  None of the statements is true. 
A)  All three statements are true. 
B)  Two of the three statements are true. 
C)  Only one of the statements is true. 
D)  None of the statements is true.

Question 6

Two unpaired electrons are present in the orbital diagram of which of the following elements?

Accepted Answer

A)  (6
C)  
B)  (10Ne) 
C)  (12Mg) 
D)  more than one correct response 
E)  no correct response 
A)  (6
C)  
B)  (10Ne) 
C)  (12Mg) 
D)  more than one correct response 
E)  no correct response

Question 7

Which of the following statements is consistent with the electron configuration 1s22s22p63s23p6?

Accepted Answer

A)  There are six electrons present in a 3p orbital. 
B)  There are six electrons present in a 3p subshell. 
C)  There are two electrons present in a 2s shell. 
D)  There are two electrons total in the second shell. 
A)  There are six electrons present in a 3p orbital. 
B)  There are six electrons present in a 3p subshell. 
C)  There are two electrons present in a 2s shell. 
D)  There are two electrons total in the second shell.

Question 8

Choose an appropriate pair of elements that have electron configurations ending in p5.

Accepted Answer

A)  (37Rb and 38Sr) 
B)  (7N and 82Pb) 
C)  (9F and 17Cl) 
D)  (42Mo and 75Re) 
A)  (37Rb and 38Sr) 
B)  (7N and 82Pb) 
C)  (9F and 17Cl) 
D)  (42Mo and 75Re)

Question 9

How many unpaired electrons are present in the orbital diagram for an atom whose electron configuration is 1s22s22p4?

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  4 
A)  0 
B)  1 
C)  2 
D)  4

Question 10

Choose the appropriate electron configuration for an element whose third shell contains six electrons.

Accepted Answer

A)  1s22s22p63s23p6 
B)  1s22s22p63s23p4 
C)  1s22s22p63s1 
D)  1s22s22p5 
A)  1s22s22p63s23p6 
B)  1s22s22p63s23p4 
C)  1s22s22p63s1 
D)  1s22s22p5

Question 11

The nucleus of an atom

Accepted Answer

A)  contains neutrons and electrons 
B)  has no charge because of the presence of neutrons 
C)  repels the negatively charged electrons in an atom 
D)  does not account for a large amount of the total volume of an atom 
A)  contains neutrons and electrons 
B)  has no charge because of the presence of neutrons 
C)  repels the negatively charged electrons in an atom 
D)  does not account for a large amount of the total volume of an atom

Question 12

Choose an appropriate pair of elements that are in the same period of the periodic table.

Accepted Answer

A)  (37Rb and 38Sr) 
B)  (7N and 82Pb) 
C)  (9F and 17Cl) 
D)  (42Mo and 75Re) 
A)  (37Rb and 38Sr) 
B)  (7N and 82Pb) 
C)  (9F and 17Cl) 
D)  (42Mo and 75Re)

Question 13

Which of the following collections of subatomic particles possesses a net charge of +2?

Accepted Answer

A)  two neutrons and two electrons 
B)  three protons and one electron 
C)  three electrons and one proton 
D)  more than one correct response 
E)  no correct response 
A)  two neutrons and two electrons 
B)  three protons and one electron 
C)  three electrons and one proton 
D)  more than one correct response 
E)  no correct response

Question 14

An atom contains 33 protons, 35 neutrons and 33 electrons. The atomic number and mass number for this atom are, respectively,

Accepted Answer

A)  35 and 33 
B)  33 and 35 
C)  33 and 68 
D)  35 and 68 
A)  35 and 33 
B)  33 and 35 
C)  33 and 68 
D)  35 and 68

Question 15

Which of the following statements correctly describes the subatomic particle called a neutron?

Accepted Answer

A)  has a mass slightly less than that of a proton 
B)  is not found in the nucleus 
C)  has a positive charge 
D)  more than one correct response 
E)  no correct response 
A)  has a mass slightly less than that of a proton 
B)  is not found in the nucleus 
C)  has a positive charge 
D)  more than one correct response 
E)  no correct response

Question 16

Which of the following pairs of atoms, specified in terms of subatomic particle composition, are isotopes?

Accepted Answer

A)  (24p, 24e, 24n) and (25p, 25e, 25n) 
B)  (24p, 24e, 24n) and (24p, 24e, 28n) 
C)  (24p, 24e, 28n) and (25p, 25e, 28n) 
D)  more than one correct response 
E)  no correct response 
A)  (24p, 24e, 24n) and (25p, 25e, 25n) 
B)  (24p, 24e, 24n) and (24p, 24e, 28n) 
C)  (24p, 24e, 28n) and (25p, 25e, 28n) 
D)  more than one correct response 
E)  no correct response

Question 17

Characterize EACH of the following statements as being TRUE or FALSE and then indicate the collective true-false status using the choices provided. (1) Electrons occupy the orbitals of a subshell such that each orbital acquires one electron before any orbital acquires a second electron.
(2) The nucleus of an atom is always positively charged.
(3) Both electrons and protons are massive particles when compared with neutrons.

Accepted Answer

A)  All three statements are true. 
B)  Two of the three statements are true. 
C)  Only one of the statements is true. 
D)  None of the statements is true. 
A)  All three statements are true. 
B)  Two of the three statements are true. 
C)  Only one of the statements is true. 
D)  None of the statements is true.

Question 18

Has fewer neutrons than electrons.

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 19

Choose the appropriate pair of atoms that contain the same number of electrons.

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 20

Which of the following statements concerning types of elements is correct?

Accepted Answer

A)  There are more noble gas elements than transition elements. 
B)  There are more s-block elements than d-block elements. 
C)  There are more nonmetals than metals. 
D)  More than one correct response. 
E)  No correct response. 
A)  There are more noble gas elements than transition elements. 
B)  There are more s-block elements than d-block elements. 
C)  There are more nonmetals than metals. 
D)  More than one correct response. 
E)  No correct response.

Exam 3: Atomic Structure and the Periodic Table

Which of the following elements is both a nonmetal and a representative element?

Choose the appropriate electron configuration for an element that has electrons in six orbitals.

Which of the following statements concerning subatomic particles is correct?

Choose the appropriate pair of atoms that contain the same number of nucleons.

Two unpaired electrons are present in the orbital diagram of which of the following elements?

Which of the following statements is consistent with the electron configuration 1s22s22p63s23p6?

Choose an appropriate pair of elements that have electron configurations ending in p5.

How many unpaired electrons are present in the orbital diagram for an atom whose electron configuration is 1s22s22p4?

Choose the appropriate electron configuration for an element whose third shell contains six electrons.

The nucleus of an atom

Choose an appropriate pair of elements that are in the same period of the periodic table.

Which of the following collections of subatomic particles possesses a net charge of +2?

An atom contains 33 protons, 35 neutrons and 33 electrons. The atomic number and mass number for this atom are, respectively,

Which of the following statements correctly describes the subatomic particle called a neutron?

Which of the following pairs of atoms, specified in terms of subatomic particle composition, are isotopes?

Has fewer neutrons than electrons.

Choose the appropriate pair of atoms that contain the same number of electrons.

Which of the following statements concerning types of elements is correct?

Basic Concepts About Matter

Measurements in Chemistry

Chemical Bonding: the Ionic Bond Model

Chemical Bonding: the Covalent Bond Model

Chemical Calculations: Formula Masses, Moles, and Chemical Equations

Gases, Liquids, and Solids

Solutions

Chemical Reactions

Acids, Bases, and Salts

Nuclear Chemistry

Saturated Hydrocarbons

Unsaturated Hydrocarbons

Alcohols, Phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids, Esters, and Other Acid Derivatives

Amines and Amides

Carbohydrates

Lipids

Proteins

Enzymes and Vitamins

Nucleic Acids

Biochemical Energy Production

Carbohydrate Metabolism

Lipid Metabolism

Protein Metabolism

Filters

Which of the following statements is consistent with the electron configuration 1s²2s²2p⁶3s²3p⁶?

Choose an appropriate pair of elements that have electron configurations ending in p⁵.

How many unpaired electrons are present in the orbital diagram for an atom whose electron configuration is 1s²2s²2p⁴?