Question 1

Which of the following is an amphoteric oxide?

Accepted Answer

A)   Na2O
B)   MgO
C)   Al2O3
D)   SO2
E)   Cl2O7F) B) and C)
G) D) and E)

Question 2

Which of these elements exhibits chemical behavior similar to that of potassium?

Accepted Answer

A)   magnesium
B)   sodium
C)   sulfur
D)   chlorine
E)   ironF) A) and B)
G) A) and C)

Question 3

Which of these elements has the greatest electron affinity?

Accepted Answer

A)   K
B)   Br
C)   As
D)   Ar
E)   IF) A) and B)
G) B) and C)

Question 4

A magnesium ion, Mg2+, has

Accepted Answer

A)   12 protons and 13 electrons.
B)   24 protons and 26 electrons.
C)   12 protons and 10 electrons.
D)   24 protons and 22 electrons.
E)   12 protons and 14 electrons.F) A) and E)
G) A) and B)

Question 5

Which one of these ions does not have [Xe] as its electronic configuration?

Accepted Answer

A)   Te2-
B)   I-
C)   Cs+
D)   Ba2+
E)   Sn4+F) A) and D)
G) A) and E)

Question 6

Which element would be expected to have properties similar to argon?

Accepted Answer

A)   F
B)   Cl
C)   H
D)   Br
E)   KrF) C) and E)
G) B) and C)

Question 7

Consider the element with the electron configuration [Kr]5s24d7. This element is

Accepted Answer

A)   a halogen.
B)   a transition metal.
C)   a nonmetal.
D)   an actinide element.
E)   a noble gas.F) A) and E)
G) A) and D)

Question 8

Coulomb's law is the attractive force (F) between two oppositely charged particles (Q1 and Q2). It is directly proportional to the product of the charges and inversely proportional to the distance (d) between the objects cubed.

Accepted Answer

A) True 
 B)False

Question 9

Explain how the elements in Group 4A differ from one another.

Accepted Answer

C IS A NONMETAL; SI ...

Question 10

Which two electron configurations represent elements that would have similar chemical properties? (1)  1s22s22p4, (2)  1s22s22p5, (3)  [Ar]4s23d104p3, (4)  [Ar]4s23d104p4

Accepted Answer

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

Question 11

Which one of these ions has the smallest radius?

Accepted Answer

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

Question 12

The radii of ions are always smaller than the radii of the corresponding atoms of the same element.

Accepted Answer

A) True 
 B)False

Question 13

Which of these elements exhibits chemical behavior similar to that of oxygen?

Accepted Answer

A)   magnesium
B)   sodium
C)   sulfur
D)   chlorine
E)   ironF) None of the above
G) A) and E)

Question 14

Which of these atoms has the largest radius?

Accepted Answer

A)   B
B)   Ga
C)   Br
D)   Si
E)   ClF) A) and E)
G) A) and C)

Question 15

Which one of the following equations correctly represents the process relating to the ionization energy of X?

Accepted Answer

A)   X(s)  → X+(g)  + e-
B)   X2(g)  → X+(g)  + X-(g) 
C)   X(g)  + e- → X-(g) 
D)   X-(g)  → X(g)  + e-
E)   X(g)  → X+(g)  + e-F) A) and E)
G) A) and D)

Question 16

Rank the following elements in order of decreasing atomic radii: Br, Fr, Ca, Ba and As.

Accepted Answer

A)   Fr > Ba > Ca > As > Br
B)   Br > As > Ca > Ba > Fr
C)   Fr > As > Br > Ba > Ca
D)   Fr > Ba > As > Br > Ca
E)   Ca > Ba > Fr > Br > AsF) A) and D)
G) C) and D)

Question 17

Select the element with the most negative electron affinity (i.e., accepts an electron most readily) .

Accepted Answer

A)   H
B)   Li
C)   C
D)   F
E)   NeF) All of the above
G) None of the above

Question 18

The electron configuration of atomic argon is the same as the chloride ion (Cl-).

Accepted Answer

A) True 
 B)False

Question 19

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

Accepted Answer

A)   Na
B)   Cl
C)   Ca
D)   Te
E)   BrF) A) and E)
G) A) and B)

Question 20

The general electron configuration for noble gas atoms is

Accepted Answer

A)   ns2np6.
B)   ns2np5.
C)   ns2np4.
D)   ns2np3.
E)   ns2.F) None of the above
G) A) and E)

Exam 7: Electron Configuration and the Periodic Table

Which of these atoms has the largest radius?

Correct AnswerverifiedShow Answer

Which element would be expected to have properties similar to argon?

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Which one of these ions does not have [Xe] as its electronic configuration?

Correct AnswerverifiedShow Answer

Coulomb's law is the attractive force (F) between two oppositely charged particles (Q1 and Q2). It is directly proportional to the product of the charges and inversely proportional to the distance (d) between the objects cubed.

Correct AnswerverifiedShow Answer

The general electron configuration for noble gas atoms is

Correct AnswerverifiedShow Answer

Which one of these ions has the smallest radius?

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Explain how the elements in Group 4A differ from one another.

Correct AnswerverifiedC IS A NONMETAL; SI ...View AnswerShow Answer

Which two electron configurations represent elements that would have similar chemical properties? (1) 1s22s22p4, (2) 1s22s22p5, (3) [Ar]4s23d104p3, (4) [Ar]4s23d104p4

Correct AnswerverifiedShow Answer

The radii of ions are always smaller than the radii of the corresponding atoms of the same element.

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Rank the following elements in order of decreasing atomic radii: Br, Fr, Ca, Ba and As.

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Which of these elements exhibits chemical behavior similar to that of oxygen?

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Which of the following is an amphoteric oxide?

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Which of these elements has the greatest electron affinity?

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The electron configuration of atomic argon is the same as the chloride ion (Cl-).

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A magnesium ion, Mg2+, has

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Which one of the following equations correctly represents the process relating to the ionization energy of X?

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Consider the element with the electron configuration [Kr]5s24d7. This element is

Correct AnswerverifiedShow Answer

Which of these elements exhibits chemical behavior similar to that of potassium?

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Select the element with the most negative electron affinity (i.e., accepts an electron most readily) .

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

Correct AnswerverifiedShow Answer

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Coulomb's law is the attractive force (F) between two oppositely charged particles (Q₁ and Q₂). It is directly proportional to the product of the charges and inversely proportional to the distance (d) between the objects cubed.

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C IS A NONMETAL; SI ...
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Which two electron configurations represent elements that would have similar chemical properties? (1) 1s²2s²2p⁴, (2) 1s²2s²2p⁵, (3) [Ar]4s²3d¹⁰4p³, (4) [Ar]4s²3d¹⁰4p⁴

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The electron configuration of atomic argon is the same as the chloride ion (Cl^-).

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A magnesium ion, Mg²⁺, has

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Consider the element with the electron configuration [Kr]5s²4d⁷. This element is

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