Question 1

The electron affinity is opposite to the ionization energy.

Accepted Answer

A) True 
 B)False

Question 2

List in order of increasing number of unpaired electrons: N, Na, Si, Cr, Ar.

Accepted Answer

A)   Cr 
B)   Ar 
C)   Ar 
D)   N 
E)   Ar < Na < Si < N < Cr

Question 3

Which of the following has the largest radius?

Accepted Answer

A)   Cl-
B)   Ar
C)   Sc3+
D)   K+
E)   P3-

Question 4

Which comparison of ionization energies is correct?

Accepted Answer

A)   Cs > Na
B)   Na > Mg
C)   Ca > Mg
D)   Ca+ > Ca
E)   Ar > He

Question 5

List in order of increasing atomic size: F, Na, K, Mg, Ne.

Accepted Answer

A)   K 
B)   Ne 
C)   Ne 
D)   Mg 
E)   K < Na < Mg < F < Ne

Question 6

Which of the following atoms has the smallest atomic radius: Br, K, Fe, Cu, Bi?

Accepted Answer

A)   Br
B)   K
C)   Fe
D)   Cu
E)   Bi

Question 7

Which of the following has the most unpaired electrons: Na, Mn2+, S, N, Ar?

Accepted Answer

A)   Na
B)   Mn2+
C)   S
D)   N
E)   Ar

Question 8

Which of the following has the smallest second ionization energy?

Accepted Answer

A)   Si
B)   Mg
C)   Al
D)   P

Question 9

Can metal atoms form negative ions in the gaseous state? Explain.

Accepted Answer

A)   No, an electron cannot be added.
B)   No, only a liquid can be ionized.
C)   Yes, electrons can be added to a Li half-filled 2s orbital.
D)   Yes, electrons can be removed from a Li half-filled 2s orbital.
E)   No, the 2s orbital is completely filled.

Question 10

Which would you expect to have the highest melting point?

Accepted Answer

A)   CF4
B)   HI
C)   HCl
D)   HBr
E)   All have the same melting point.

Question 11

List in order of more negative electron affinity: F, Br, Sb, Rb, Se. (more positive → more negative)

Accepted Answer

A)   Br 
B)   Se 
C)   Sb 
D)   Br 
E)   Rb < Sb < Se < Br < F

Question 12

Which 1+ ion is isoelectronic with S2-?

Accepted Answer

Question 13

What is the general electronic configuration (where n = principal quantum number)  that best describes the halogens as a group?

Accepted Answer

A)   ns1np6
B)   ns2np4
C)   ns2sp5
D)   ns2np6
E)   ns2np3

Question 14

List in order of increasing atomic size: Sr, Se, Cs, Ga, In.

Accepted Answer

A)   Se 
B)   Ga 
C)   Sr 
D)   In 
E)   Cs < Ga < Se < Sr < In

Question 15

Which of the following is an amphoteric oxide?

Accepted Answer

A)   Al2O3
B)   Li2O
C)   PO3
D)   Sc2O3
E)   SrO

Question 16

List in order of increasing size: Cl-, Ar, K+, S2-, Ca2+.

Accepted Answer

A)   Ca2+ + - 2-
B)   S2- - + 2+
C)   Ca2+ 2- + -
D)   Cl- + 2- 2+
E)   K+ 2- - 2+

Question 17

Arrange the following elements in order of increasing metallic character: Al, Pt, Cd.

Accepted Answer

A)   Cd 
B)   Al 
C)   Al 
D)   Cd 
E)   Pt < Cd < Al

Question 18

Which of the following has the largest radius?

Accepted Answer

A)   Se2-
B)   Kr
C)   Rb+
D)   Br-
E)   Y3+

Question 19

Which species is diamagnetic?

Accepted Answer

A)   atomic sodium
B)   atomic fluorine
C)   iron(III)  ion
D)   calcium(II)  ion
E)   cobalt(II)  ion

Question 20

Which of the following has the smallest radius?

Accepted Answer

A)   Yb3+
B)   Ho3+
C)   Nd3+
D)   Gd3+
E)   Ce3+

Exam 9: The Periodic Table and Some Atomic Properties

Which of the following has the most unpaired electrons: Na, Mn2+, S, N, Ar?

Correct AnswerverifiedShow Answer

Which of the following atoms has the smallest atomic radius: Br, K, Fe, Cu, Bi?

Correct AnswerverifiedShow Answer

List in order of increasing number of unpaired electrons: N, Na, Si, Cr, Ar.

Correct AnswerverifiedShow Answer

List in order of increasing atomic size: F, Na, K, Mg, Ne.

Correct AnswerverifiedShow Answer

Which comparison of ionization energies is correct?

Correct AnswerverifiedShow Answer

List in order of increasing size: Cl-, Ar, K+, S2-, Ca2+.

Correct AnswerverifiedShow Answer

Can metal atoms form negative ions in the gaseous state? Explain.

Correct AnswerverifiedShow Answer

Which of the following has the largest radius?

Correct AnswerverifiedShow Answer

Which of the following has the smallest second ionization energy?

Correct AnswerverifiedShow Answer

Which would you expect to have the highest melting point?

Correct AnswerverifiedShow Answer

List in order of more negative electron affinity: F, Br, Sb, Rb, Se. (more positive → more negative)

Correct AnswerverifiedShow Answer

What is the general electronic configuration (where n = principal quantum number) that best describes the halogens as a group?

Correct AnswerverifiedShow Answer

Which species is diamagnetic?

Correct AnswerverifiedShow Answer

Arrange the following elements in order of increasing metallic character: Al, Pt, Cd.

Correct AnswerverifiedShow Answer

List in order of increasing atomic size: Sr, Se, Cs, Ga, In.

Correct AnswerverifiedShow Answer

Which 1+ ion is isoelectronic with S2-?

Correct AnswerverifiedShow Answer

Which of the following has the smallest radius?

Correct AnswerverifiedShow Answer

Which of the following has the largest radius?

Correct AnswerverifiedShow Answer

Which of the following is an amphoteric oxide?

Correct AnswerverifiedShow Answer

The electron affinity is opposite to the ionization energy.

Correct AnswerverifiedShow Answer

Which of the following has the most unpaired electrons: Na, Mn²⁺, S, N, Ar?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

List in order of increasing size: Cl^-, Ar, K⁺, S^{2^-}, Ca^2⁺.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Which 1+ ion is isoelectronic with S^2-?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified