Question 1

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

Accepted Answer

Question 2

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) A) and E)
G) B) and D)

Question 3

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) C) and D)
G) B) and E)

Question 4

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) A) and E)
G) B) and D)

Question 5

Write the ground-state electron configuration for Mg2+.

Accepted Answer

Question 6

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) A) and E)
G) None of the above

Question 7

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) B) and C)
G) D) and E)

Question 8

How many core electrons does a silicon atom have?

Accepted Answer

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

Question 9

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) A) and E)
G) D) and E)

Question 10

Write the ground-state electron configuration for Br-.

Accepted Answer

[Kr] or 1s...

Question 11

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) All of the above
G) A) and B)

Question 12

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

Accepted Answer

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

Question 13

Amphoteric oxides exhibit both acidic and basic properties.

Accepted Answer

A) True 
 B)False

Question 14

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) A) and B)
G) C) and E)

Question 15

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) A) and B)
G) A) and C)

Question 16

Electron affinity is always a positive quantity.

Accepted Answer

A) True 
 B)False

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) B) and E)
G) None of the above

Question 18

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 19

Write the ground-state electron configuration for I-.

Accepted Answer

[Xe] or 1s...

Question 20

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

Accepted Answer

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

Exam 8: Periodic Relationships Among the Elements

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

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

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

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Write the ground-state electron configuration for Mg2+.

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

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Amphoteric oxides exhibit both acidic and basic properties.

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

Correct AnswerverifiedShow Answer

Write the ground-state electron configuration for I-.

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

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

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Which one of the following ions has the largest radius?

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

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Write the ground-state electron configuration for Br-.

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

Electron affinity is always a positive quantity.

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

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

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

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

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How many core electrons does a silicon atom have?

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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 Mg²⁺.

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

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[Xe] or 1s...
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Since zirconium is a metal, ZrO₂ is expected to be a/an _____ oxide.

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

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[Kr] or 1s...
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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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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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