Question 1

__________ have the lowest first ionization energies of the groups listed.

Accepted Answer

A)  Alkali metals
B)  Transition elements
C)  Halogens
D)  Alkaline earth metals
E)  Noble gases

Question 2

Of the hydrogen halides, only __________ is a weak acid.

Accepted Answer

A)  HCl (aq) 
B)  HBr (aq) 
C)  HF (aq) 
D)  HI (aq) 
E)  They are all weak acids.

Question 3

In which orbital does an electron in a phosphorus atom experience the greatest shielding?

Accepted Answer

A)  2p
B)  3s
C)  3p
D)  2s
E)  1s

Question 4

[Xe]6s2 is the electron configuration for __________.

Accepted Answer

Question 5

The most common sulfur ion has a charge of __________.

Accepted Answer

A)  2-
B)  1-
C)  4+
D)  6+
E)  Sulfur does not form ions.

Question 6

In which set of elements would all members be expected to have very similar chemical properties?

Accepted Answer

A)  O, S, Se
B)  N, O, F
C)  Na, Mg, K
D)  S, Se, Si
E)  Ne, Na, Mg

Question 7

Which of the following correctly represents the second ionization of phosphorus?

Accepted Answer

A)  P+ (g) + e- → P2+ (g) 
B)  P (g) → P+ (g) + e-
C)  P- (g) + e- → P2- (g) 
D)  P+ (g) → P2+ (g) + e-
E)  P+ (g) + e- → P (g)

Question 8

Alkaline earth metals __________.

Accepted Answer

A)  have the smallest atomic radius in a given period
B)  form monoanions
C)  form basic oxides
D)  exist as triatomic molecules
E)  form halides with the formula MX

Question 9

Sodium is much more apt to exist as a cation than is chlorine. This is because __________.

Accepted Answer

A)  chlorine is a gas and sodium is a solid
B)  chlorine has a greater electron affinity than sodium does
C)  chlorine is bigger than sodium
D)  chlorine has a greater ionization energy than sodium does
E)  chlorine is more metallic than sodium

Question 10

Of the following elements, __________ has the most negative electron affinity.

Accepted Answer

A)  P
B)  Al
C)  Si
D)  Cl
E)  B

Question 11

In nature, sulfur is most commonly found in __________.

Accepted Answer

A)  pure elemental sulfur
B)  sulfur oxides
C)  metal sulfides
D)  sulfuric acid
E)  H2S

Question 12

Which metal is a liquid at room temperature?

Accepted Answer

The answer of Which metal is a liquid at room...

Question 13

Which group 6A element is a metal?

Accepted Answer

A)  tellurium and polonium
B)  sulfur
C)  selenium
D)  tellurium
E)  polonium

Question 14

A group of ions all containing the same number of electrons constitute an isoelectronic series.

Accepted Answer

A) True 
 B)False

Question 15

Electron affinity measures how easily an atom gains an electron.

Accepted Answer

A) True 
 B)False

Question 16

An electron in a(n) __________ subshell experiences the greatest effective nuclear charge in a many-electron atom.

Accepted Answer

A)  3f
B)  3p
C)  3d
D)  3s
E)  4s

Question 17

The reaction of a metal with a nonmetal produces a(n) __________.

Accepted Answer

A)  base
B)  salt
C)  acid
D)  oxide
E)  hydroxide

Question 18

In general, as you go across a period in the periodic table from left to right: (1) the atomic radius __________;
(2) the electron affinity becomes __________ negative; and
(3) the first ionization energy __________.

Accepted Answer

A)  decreases, decreasingly, increases
B)  increases, increasingly, decreases
C)  increases, increasingly, increases
D)  decreases, increasingly, increases
E)  decreases, increasingly, decreases

Question 19

Of the choices below, which gives the order for first ionization energies?

Accepted Answer

A)  Kr > Se > Br > Ga > Ge
B)  Kr > Br > Se > Ge > Ga
C)  Ga > Br > Ge > Kr > Se
D)  Ga > Ge > Se > Br > Kr
E)  Br > Se > Ga > Kr > Ge

Question 20

Alkali metals tend to be more reactive than alkaline earth metals because __________.

Accepted Answer

A)  alkali metals have lower densities
B)  alkali metals have lower melting points
C)  alkali metals have greater electron affinities
D)  alkali metals have lower ionization energies
E)  alkali metals are not more reactive than alkaline earth metals

Exam 7: Periodic Properties of the Elements

The most common sulfur ion has a charge of __________.

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Which group 6A element is a metal?

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In which set of elements would all members be expected to have very similar chemical properties?

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In which orbital does an electron in a phosphorus atom experience the greatest shielding?

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The reaction of a metal with a nonmetal produces a(n) __________.

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Electron affinity measures how easily an atom gains an electron.

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[Xe]6s2 is the electron configuration for __________.

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In nature, sulfur is most commonly found in __________.

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In general, as you go across a period in the periodic table from left to right: (1) the atomic radius __________; (2) the electron affinity becomes __________ negative; and (3) the first ionization energy __________.

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__________ have the lowest first ionization energies of the groups listed.

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Alkali metals tend to be more reactive than alkaline earth metals because __________.

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Alkaline earth metals __________.

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Of the choices below, which gives the order for first ionization energies?

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Of the hydrogen halides, only __________ is a weak acid.

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A group of ions all containing the same number of electrons constitute an isoelectronic series.

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Sodium is much more apt to exist as a cation than is chlorine. This is because __________.

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Of the following elements, __________ has the most negative electron affinity.

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An electron in a(n) __________ subshell experiences the greatest effective nuclear charge in a many-electron atom.

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Which of the following correctly represents the second ionization of phosphorus?

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Which metal is a liquid at room temperature?

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[Xe]6s² is the electron configuration for __________.

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In general, as you go across a period in the periodic table from left to right: (1) the atomic radius ; (2) the electron affinity becomes negative; and (3) the first ionization energy __.

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