Question 1

What is the shell number for the outer shell electrons in bromine,Br?

Accepted Answer

A)  4 
B)  3 
C)  5 
D)  6 
A)  4 
B)  3 
C)  5 
D)  6

Question 2

The distinguishing electron for any element is a valence electron.

Accepted Answer

A) True 
 B)False

Question 3

For which of the listed elements (E)would the energy required for the following reaction be the least? E(g)$\rarr$E+(g)+ e-

Accepted Answer

A)  Ga 
B)  Na 
C)  Ca 
D)  K 
A)  Ga 
B)  Na 
C)  Ca 
D)  K

Question 4

Which of the following contains the same total number of unpaired electrons as potassium (K)?

Accepted Answer

A)  Sc 
B)  Cl 
C)  Mg 
D)  more than one response is correct 
A)  Sc 
B)  Cl 
C)  Mg 
D)  more than one response is correct

Question 5

The total number of unpaired electrons in silicon,Si,is _____ .

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
A)  0 
B)  1 
C)  2 
D)  3

Question 6

The total number of f orbitals in an f subshell is _____ .

Accepted Answer

A)  2 
B)  5 
C)  7 
D)  10 
A)  2 
B)  5 
C)  7 
D)  10

Question 7

Which of the following elements should have properties similar to those of nitrogen (element 7)?

Accepted Answer

A)  C 
B)  Si 
C)  P 
D)  O 
A)  C 
B)  Si 
C)  P 
D)  O

Question 8

Which of the following subshells has the higher energy?

Accepted Answer

A)  4s 
B)  4p 
C)  4d 
D)  4f 
A)  4s 
B)  4p 
C)  4d 
D)  4f

Question 9

____ states that,electrons will not join other electrons in an orbital if an empty orbital of the same energy is available.

Accepted Answer

A)  Hund's rule 
B)  Pauli exclusion principle 
C)  Periodic law 
D)  None of these 
A)  Hund's rule 
B)  Pauli exclusion principle 
C)  Periodic law 
D)  None of these

Question 10

The distinguishing electron for most non-metals is an s electron.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following elements is classified as a representative metal?

Accepted Answer

A)  element 30 
B)  element 26 
C)  element 38 
D)  element 63 
A)  element 30 
B)  element 26 
C)  element 38 
D)  element 63

Question 12

The highest-energy shell of an element that contains electrons is know as the _____ .

Accepted Answer

A)  subshell 
B)  atomic orbital 
C)  valence shell 
D)  none of these 
A)  subshell 
B)  atomic orbital 
C)  valence shell 
D)  none of these

Question 13

Which element is represented by the distinguishing electron configuration 5d 9?

Accepted Answer

A)  Pd 
B)  Ag 
C)  Pt 
D)  Au 
A)  Pd 
B)  Ag 
C)  Pt 
D)  Au

Question 14

As one moves across the 4th period from left to right,the valence electrons go into the same shell,and the atomic radius decreases.The decrease in atomic radius is due to the increase in the attraction of the nucleus for the electrons in the shells.

Accepted Answer

A) True 
 B)False

Question 15

The fifth period begins with Rb.

Accepted Answer

A) True 
 B)False

Question 16

Calcium supplements that are made from calcium carbonate should be taken with food because stomach acid is required to dissolve them.

Accepted Answer

A) True 
 B)False

Question 17

The electron configuration for each shell starts with an s subshell.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following elements is found in the same period of the periodic table as tin?

Accepted Answer

A)  silicone 
B)  arsenic 
C)  tellurium 
D)  technetium 
A)  silicone 
B)  arsenic 
C)  tellurium 
D)  technetium

Question 19

Which pair of the following represents the same electron configuration?

Accepted Answer

A)  [Ne] 3s2 and 1s2 2s2 2p6 3s2  
B)  [He] 3s2 and 1s2 2s2 2p6 3s2 
C)  [Ar]3s2 and 1s2 2s2 2p6 3s2  
D)  All represent the same configuration. 
A)  [Ne] 3s2 and 1s2 2s2 2p6 3s2  
B)  [He] 3s2 and 1s2 2s2 2p6 3s2 
C)  [Ar]3s2 and 1s2 2s2 2p6 3s2  
D)  All represent the same configuration.

Question 20

The distinguishing electron in antimony,Sb,is found in a 5p subshell.

Accepted Answer

A) True 
 B)False

Exam 3: Electronic Structure and the Periodic Law

What is the shell number for the outer shell electrons in bromine,Br?

The distinguishing electron for any element is a valence electron.

For which of the listed elements (E)would the energy required for the following reaction be the least? E(g) →\rarr→ E+(g)+ e-

Which of the following contains the same total number of unpaired electrons as potassium (K)?

The total number of unpaired electrons in silicon,Si,is _____ .

The total number of f orbitals in an f subshell is _____ .

Which of the following elements should have properties similar to those of nitrogen (element 7)?

Which of the following subshells has the higher energy?

____ states that,electrons will not join other electrons in an orbital if an empty orbital of the same energy is available.

The distinguishing electron for most non-metals is an s electron.

Which of the following elements is classified as a representative metal?

The highest-energy shell of an element that contains electrons is know as the _____ .

Which element is represented by the distinguishing electron configuration 5d 9?

As one moves across the 4th period from left to right,the valence electrons go into the same shell,and the atomic radius decreases.The decrease in atomic radius is due to the increase in the attraction of the nucleus for the electrons in the shells.

The fifth period begins with Rb.

Calcium supplements that are made from calcium carbonate should be taken with food because stomach acid is required to dissolve them.

The electron configuration for each shell starts with an s subshell.

Which of the following elements is found in the same period of the periodic table as tin?

Which pair of the following represents the same electron configuration?

The distinguishing electron in antimony,Sb,is found in a 5p subshell.

Matter, measurements, and Calculations

Atoms and Molecules

Forces Between Particles

Chemical Reactions

The States of Matter

Solutions and Colloids

Reaction Rates and Equilibrium

Acids,bases,and Salts

Radioactivity and Nuclear Processes

Organic Compounds: Alkanes

Unsaturated Hydrocarbons

Alcohols, phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Esters

Amines and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Nucleic Acids and Protein Synthesis

Nutrition and Energy for Life

Carbohydrate Metabolism

Lipid and Amino Acid Metabolism

Body Fluids

Filters

For which of the listed elements (E)would the energy required for the following reaction be the least? E(g) $\rarr$ E⁺(g)+ e^-

Which element is represented by the distinguishing electron configuration 5d ⁹?

The distinguishing electron in antimony,Sb,is found in a 5psubshell.