Question 1

What is the maximum number of electrons that can occupy the third shell?

Accepted Answer

A) 2 
B) 10 
C) 18 
D) 32 
A) 2 
B) 10 
C) 18 
D) 32

Question 2

Which element is the first one in the group IVA(14)of the periodic table?

Accepted Answer

A) C 
B) Na 
C) Sc 
D) Ti 
A) C 
B) Na 
C) Sc 
D) Ti

Question 3

Which of the following is a reasonable explanation as to why atomic radii become smaller as one moves to the right for the representative elements in a period?

Accepted Answer

A) The charge of the nucleus increases, pulling the shells closer. 
B) More densely packed shells are always smaller. 
C) Elements become less metallic. 
D) Atomic radii actually increase as you move to the right. 
A) The charge of the nucleus increases, pulling the shells closer. 
B) More densely packed shells are always smaller. 
C) Elements become less metallic. 
D) Atomic radii actually increase as you move to the right.

Question 4

Metalloids can express the characteristics of both metals and nonmetals. Which of the elements below is more likely to have the characteristics of a metal than a nonmetal?

Accepted Answer

A) As 
B) Se 
C) Si 
D) Sb 
A) As 
B) Se 
C) Si 
D) Sb

Question 5

The second shell has a maximum capacity of 6 electrons.

Accepted Answer

A) True 
 B)False

Question 6

The highest-energy shell of an element that contains electrons is known 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 7

Element number 92, uranium, U, is a metal.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following is a representation of a p orbital?

Accepted Answer

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

Question 9

Which of the following subshells has the higher energy?

Accepted Answer

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

Question 10

The family name for group VIIIA(18)of the periodic table is

Accepted Answer

A) transition metals. 
B) noble gases. 
C) representative elements. 
D) There is no family name 
A) transition metals. 
B) noble gases. 
C) representative elements. 
D) There is no family name

Question 11

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 12

Tin (Sn)is a representative element.

Accepted Answer

A) True 
 B)False

Question 13

Which element has the largest atomic radii?

Accepted Answer

A) I 
B) F 
C) Li 
D) Cs 
A) I 
B) F 
C) Li 
D) Cs

Question 14

The radius of a magnesium atom is larger than the radius of a sodium atom.

Accepted Answer

A) True 
 B)False

Question 15

____ 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 16

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

Accepted Answer

A) True 
 B)False

Question 17

Which of the following statements conforms to the trends within the Periodic Table of the Elements?

Accepted Answer

A) Elements become more likely to be gases at the bottom of a group. 
B) Elements become more likely to be a solid at the bottom of a group. 
C) Elements become more likely to be darkly colored at the bottom of a group. 
D) Elements become more likely to be more brittle at the bottom of a group. 
A) Elements become more likely to be gases at the bottom of a group. 
B) Elements become more likely to be a solid at the bottom of a group. 
C) Elements become more likely to be darkly colored at the bottom of a group. 
D) Elements become more likely to be more brittle at the bottom of a group.

Question 18

In which of the following elements does the distinguishing electron occupy a d subshell?

Accepted Answer

A) Cr 
B) O 
C) Kr 
D) Sr 
A) Cr 
B) O 
C) Kr 
D) Sr

Question 19

How many electrons are in the outer shell of element 15?

Accepted Answer

A) 5 
B) 3 
C) 15 
D) 2 
A) 5 
B) 3 
C) 15 
D) 2

Question 20

Argon completes the fourth period of the periodic table.

Accepted Answer

A) True 
 B)False

Exam 3: Electronic Structure and the Periodic Law

What is the maximum number of electrons that can occupy the third shell?

Which element is the first one in the group IVA(14)of the periodic table?

Which of the following is a reasonable explanation as to why atomic radii become smaller as one moves to the right for the representative elements in a period?

Metalloids can express the characteristics of both metals and nonmetals. Which of the elements below is more likely to have the characteristics of a metal than a nonmetal?

The second shell has a maximum capacity of 6 electrons.

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

Element number 92, uranium, U, is a metal.

Which of the following is a representation of a p orbital?

Which of the following subshells has the higher energy?

The family name for group VIIIA(18)of the periodic table is

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

Tin (Sn)is a representative element.

Which element has the largest atomic radii?

The radius of a magnesium atom is larger than the radius of a sodium atom.

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

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

Which of the following statements conforms to the trends within the Periodic Table of the Elements?

In which of the following elements does the distinguishing electron occupy a d subshell?

How many electrons are in the outer shell of element 15?

Argon completes the fourth period of the periodic table.

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