Question 1

Which of the following could never be isoelectronic species?

Accepted Answer

A)  anions of two different elements
B)  cations of two different elements
C)  an anion and a cation
D)  an anion and an atom
E)  atoms of two different elementsF) C) and D)
G) B) and E)

Question 2

The first ionization energy for rubidium is +403.0 kJ/mol.How much energy would be required to convert 17.1 g of gaseous rubidium to its gaseous +1 monatomic ion at constant temperature?

Accepted Answer

A)  185 kJ
B)  80.6 kJ
C)  68.9 kJ
D)  40.4 kJ
E)  34.5 kJF) A) and B)
G) A) and C)

Question 3

Polarizability decreases with the size of the atom.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following species will have the highest ionization energy?

Accepted Answer

A)  K+
B)  Ar
C)  Cl-
D)  S2-E) None of the above
F) A) and B)

Question 5

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

Accepted Answer

A)  ns1np6 
B)  ns2np4 
C)  ns2np5 
D)  ns2np6 
E)  ns2np3 F) B) and C)
G) A) and D)

Question 6

Choose the INCORRECT statement.

Accepted Answer

A)  Within a given subshell,each orbital is usually occupied by a single electron before any orbital has two electrons.
B)  When a metallic element unites with a nonmetallic element,electrons are lost by atoms of the metal and gained by atoms of the nonmetals.
C)  The noble gas atoms complete the filling of the p orbitals.
D)  The ionization energy of Ca+ is greater than that for Ca2+.
E)  The radius of Ba2+ is smaller than the radius of Ba+.F) B) and D)
G) A) and B)

Question 7

Which of the following pairs of elements are classified as metalloids?

Accepted Answer

A)  aluminum and silicon
B)  argon and neon
C)  arsenic and germanium
D)  bromine and sulfur
E)  copper and silverF) C) and E)
G) A) and B)

Question 8

Can alkali 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,an electron can be added to a Li half-filled 2s orbital.
D)  Yes,an electron can be removed from a Li half-filled 2s orbital.
E)  No,the 2s orbital is completely filled.F) B) and D)
G) A) and D)

Question 9

Which ionization process requires the most energy?

Accepted Answer

A)  O(g) → O+(g) + e-
B)  O+(g) → O2+(g) + e-
C)  F(g) → F+(g) + e-
D)  F+(g) → F2+(g) + e-E) All of the above
F) A) and B)

Question 10

Which of the following has the most negative electron affinity: Li,Be,N,O,F?

Accepted Answer

A)  Li
B)  Be
C)  N
D)  O
E)  FF) A) and E)
G) A) and B)

Question 11

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 < NeF) A) and D)
G) B) and D)

Question 12

Which of the following reactions gives a positive value for the electron affinity?

Accepted Answer

A)  S-(g) + e- → S2-(g) 
B)  O(g) + e- → O-(g) 
C)  S(g) + e- → S-(g) 
D)  Br(g) + e- → Br-(g) E) All of the above
F) None of the above

Question 13

The energy difference between atomic cesium and its most stable ion,in the gaseous state,is referred to as ________.

Accepted Answer

A)  atomic energy
B)  electron affinity
C)  entropy of vaporization
D)  ionization energy
E)  magnetic momentF) A) and B)
G) A) and C)

Question 14

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 < CrF) B) and C)
G) A) and B)

Question 15

The transition elements refer to what group of elements?

Accepted Answer

A)  s-block elements
B)  d-block elements
C)  actinides
D)  lanthanides
E)  p-block elementsF) A) and B)
G) D) and E)

Question 16

List in order of increasing ionization potential: O,Mg,Rb,S,Si.

Accepted Answer

A)  Si 
B)  Si 
C)  Mg 
D)  Rb 
E)  S < Si < Mg < O < RbF) A) and B)
G) C) and D)

Question 17

Which 1+ ion is isoelectronic with S2-?

Accepted Answer

Question 18

Of the following,which atom has the largest atomic radius?

Accepted Answer

A)  Rb
B)  I
C)  Cs
D)  AtE) C) and D)
F) B) and C)

Question 19

Which of the following has the smallest value of the first ionization energy: Ar,Cs,N,Cu,Rb?

Accepted Answer

A)  Ar
B)  Cs
C)  N
D)  Cu
E)  RbF) A) and C)
G) None of the above

Question 20

The ion represented as 4+ has: A) 22 electrons B) 48 neutrons C) 26 protons D) 4 3d electrons E) 0 4s electrons" class="answers-bank-image d-inline" rel="preload" >Ti4+ has:

Accepted Answer

A)  22 electrons
B)  48 neutrons
C)  26 protons
D)  4 3d electrons
E)  0 4s electronsF) A) and B)
G) A) and E)

Exam 9: The Periodic Table and Some Atomic Properties

Which of the following has the most negative electron affinity: Li,Be,N,O,F?

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The energy difference between atomic cesium and its most stable ion,in the gaseous state,is referred to as ________.

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The transition elements refer to what group of elements?

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Which of the following pairs of elements are classified as metalloids?

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Choose the INCORRECT statement.

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Which of the following reactions gives a positive value for the electron affinity?

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

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Which 1+ ion is isoelectronic with S2-?

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Which of the following could never be isoelectronic species?

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List in order of increasing ionization potential: O,Mg,Rb,S,Si.

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Of the following,which atom has the largest atomic radius?

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Polarizability decreases with the size of the atom.

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

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Which of the following has the smallest value of the first ionization energy: Ar,Cs,N,Cu,Rb?

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The ion represented as Ti4+ has:

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

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Which of the following species will have the highest ionization energy?

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

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Which ionization process requires the most energy?

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The first ionization energy for rubidium is +403.0 kJ/mol.How much energy would be required to convert 17.1 g of gaseous rubidium to its gaseous +1 monatomic ion at constant temperature?

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

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The ion represented as Ti⁴⁺ has:

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