Question 1

How many core electrons does a silicon atom have?

Accepted Answer

A)  14
B)  10
C)  4
D)  8
E)  2F) A) and B)
G) A) and C)

Question 2

Which of the following reactants can be combined to produce hydrogen gas as a product?

Accepted Answer

A)  N2O5(s) + H2O(l)  →\rarr→ 
B)  H2(g) + Cl2(g)  →\rarr→ 
C)  2 F2(g) + 2H2O(l)  →\rarr→ 
D)  Mg(s) + 2H+(aq)  →\rarr→ 
E)  2H2(g) + O2(g)  →\rarr→F) C) and E)
G) All of the above

Question 3

Which one of the following elements forms a stable 2+ cation?

Accepted Answer

A)  Kr
B)  I
C)  Se
D)  Al
E)  BaF) A) and B)
G) D) and E)

Question 4

Which of the following elements has the smallest first ionization energy?

Accepted Answer

A)  Cl
B)  Na
C)  Be
D)  K
E)  AsF) A) and B)
G) A) and C)

Question 5

Consider the following reaction: 3Li + Z  →\rarr→  Li3Z.What is the formula for the compound if we substitute sodium for lithium?

Accepted Answer

A)  NaZ
B)  Na2Z
C)  NaZ2
D)  Na3Z
E)  NaZ3 F) None of the above
G) A) and E)

Question 6

Write the ground-state electron configuration for Mg2+.

Accepted Answer

Question 7

The effective nuclear charge (Zeff) felt by the outermost electrons is the strongest for which of the following elements?

Accepted Answer

A)  Al
B)  Si
C)  P
D)  S
E)  ClF) A) and E)
G) None of the above

Question 8

Electron affinity is always a positive quantity.

Accepted Answer

A) True 
 B)False

Question 9

Which two electron configurations represent elements that would have similar chemical properties? (1) 1s22s22p4 (2) 1s22s22p5 (3) [Ar]4s23d5 (4) [Ar]4s23d104p5

Accepted Answer

A)  (1) and (2) 
B)  (1) and (3) 
C)  (2) and (3) 
D)  (2) and (4) 
E)  (3) and (4) F) C) and D)
G) A) and B)

Question 10

Which of the following is the general electron configuration for the outermost electrons of the halogens?

Accepted Answer

A)  ns2np6
B)  ns2np5
C)  ns2np6(n -1) d7
D)  ns1
E)  ns2np7F) B) and D)
G) B) and E)

Question 11

The alkali metal elements are found in _______ of the periodic table.

Accepted Answer

A)  Group 1A
B)  Group 2A
C)  Group 3A
D)  Period 7
E)  Period 1F) All of the above
G) None of the above

Question 12

Concerning the electron configuration of S2-, 1s22s22p63s23p6, write the configuration for the valence shell electrons only

Accepted Answer

Question 13

Write the ground-state electron configuration for I-.

Accepted Answer

[Xe] or 1s...

Question 14

Write the ground-state electron configuration for Br-.

Accepted Answer

[Kr] or 1s...

Question 15

Since zirconium is a metal, ZrO2 is expected to be a/an _____ oxide.

Accepted Answer

A)  acidic
B)  ionic
C)  amphoteric
D)  neutral
E)  basicF) B) and D)
G) A) and D)

Question 16

Which of the following reactants can be combined to produce a basic oxide as a product?

Accepted Answer

A)  Cl2O7(l) + H2O(l)  →\rarr→ 
B)  P4O10(s) + 6H2O(l)  →\rarr→ 
C)  4Li(s) + O2(g)  →\rarr→ 
D)  Al2O3(s) + 6HCl(aq)  →\rarr→ 
E)  MgO(s) + 2HCl(aq)  →\rarr→F) B) and E)
G) B) and D)

Question 17

Which one of the following ions has the largest radius?

Accepted Answer

A)  Cl-
B)  K+
C)  S2-
D)  Na+
E)  O2-F) A) and B)
G) A) and E)

Question 18

Which of the following is the electron configuration for the bromide ion?

Accepted Answer

A)  [Ar]
B)  [Ar]4s23d104p7
C)  [Kr]
D)  [Kr]5s24d105p7
E)  [Xe]F) All of the above
G) None of the above

Question 19

Amphoteric oxides exhibit both acidic and basic properties.

Accepted Answer

A) True 
 B)False

Question 20

The elements in Group 2A are known by what name?

Accepted Answer

A)  transition metals
B)  halogens
C)  alkali metals
D)  alkaline earth metals
E)  noble gasesF) D) and E)
G) C) and E)

Exam 8: Periodic Relationships Among the Elements

Which of the following elements has the smallest first ionization energy?

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Which of the following is the electron configuration for the bromide ion?

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Which one of the following ions has the largest radius?

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Since zirconium is a metal, ZrO2 is expected to be a/an _____ oxide.

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The alkali metal elements are found in _______ of the periodic table.

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Electron affinity is always a positive quantity.

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Which of the following reactants can be combined to produce hydrogen gas as a product?

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Consider the following reaction: 3Li + Z →\rarr→ Li3Z.What is the formula for the compound if we substitute sodium for lithium?

Correct AnswerverifiedShow Answer

Amphoteric oxides exhibit both acidic and basic properties.

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How many core electrons does a silicon atom have?

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Which of the following is the general electron configuration for the outermost electrons of the halogens?

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The effective nuclear charge (Zeff) felt by the outermost electrons is the strongest for which of the following elements?

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Concerning the electron configuration of S2-, 1s22s22p63s23p6, write the configuration for the valence shell electrons only

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Write the ground-state electron configuration for Br-.

Correct Answerverified[Kr] or 1s...View AnswerShow Answer

Which two electron configurations represent elements that would have similar chemical properties? (1) 1s22s22p4 (2) 1s22s22p5 (3) [Ar]4s23d5 (4) [Ar]4s23d104p5

Correct AnswerverifiedShow Answer

The elements in Group 2A are known by what name?

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Write the ground-state electron configuration for I-.

Correct Answerverified[Xe] or 1s...View AnswerShow Answer

Write the ground-state electron configuration for Mg2+.

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Which of the following reactants can be combined to produce a basic oxide as a product?

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Which one of the following elements forms a stable 2+ cation?

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Since zirconium is a metal, ZrO₂ is expected to be a/an _____ oxide.

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Consider the following reaction: 3Li + Z $\rarr$ Li₃Z.What is the formula for the compound if we substitute sodium for lithium?

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The effective nuclear charge (Z_eff) felt by the outermost electrons is the strongest for which of the following elements?

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Concerning the electron configuration of S^2-, 1s²2s²2p⁶3s²3p⁶, write the configuration for the valence shell electrons only

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Write the ground-state electron configuration for Br^-.

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[Kr] or 1s...
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Which two electron configurations represent elements that would have similar chemical properties? (1) 1s²2s²2p⁴ (2) 1s²2s²2p⁵ (3) [Ar]4s²3d⁵ (4) [Ar]4s²3d¹⁰4p⁵

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Write the ground-state electron configuration for I^-.

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[Xe] or 1s...
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Write the ground-state electron configuration for Mg²⁺.

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