Question 1

An oxide ion, O2-, has

Accepted Answer

A)   8 protons and 10 electrons.
B)   10 protons and 8 electrons.
C)   8 protons and 9 electrons.
D)   8 protons and 7 electrons.
E)   10 protons and 7 electrons.F) A) and E)
G) A) and D)

Question 2

Which of the elements listed below has the greatest atomic radius?

Accepted Answer

A)   B
B)   Al
C)   S
D)   P
E)   SiF) D) and E)
G) C) and D)

Question 3

Which of these choices is the general electron configuration for the outermost electrons of elements in the alkaline earth group?

Accepted Answer

A)   ns1
B)   ns2
C)   ns2np4
D)   ns2np
E)   ns2np6 (n - 1) d6F) B) and E)
G) B) and D)

Question 4

The ionic radius is the distance between the nucleus and valence shell of an anion or cation. A cation is ________ than the parent atom it arises from, and an anion is ________ than the parent atom it arises from.

Accepted Answer

The answer of The ionic radius is the distance between...

Question 5

In neutral atoms, the 3d orbitals have higher energy than the 4s orbitals.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following elements has the smallest atomic size?

Accepted Answer

A)   Na
B)   Ar
C)   K
D)   Ca
E)   KrF) A) and B)
G) A) and C)

Question 7

What is the electron configuration for Fr?

Accepted Answer

A)   [Xe]6s1
B)   [Rn]7s1
C)   [Rn]7s2
D)   [Xe]6s2
E)   [Kr]6s1F) A) and B)
G) C) and D)

Question 8

Explain how the elements in Group 6A differ from one another.

Accepted Answer

O, S, and Se are non...

Question 9

The first ionization energies of noble gases are ________.

Accepted Answer

A)   very positive
B)   slightly negative
C)   slightly positive
D)   very negative
E)   zeroF) A) and B)
G) B) and E)

Question 10

The chief contribution of physicist Henry Moseley to atomic theory was

Accepted Answer

A)   the discovery of the periodic law.
B)   the determination of the charge of the proton.
C)   the measurement of the atomic numbers of the elements.
D)   the determination of the electric charge of the electron.
E)   the discovery of the law of octaves.F) D) and E)
G) A) and C)

Question 11

In Mendeleev's version of the periodic table, the elements were arranged in order of increasing atomic number.

Accepted Answer

A) True 
 B)False

Question 12

The elements in a column of the periodic table are known as

Accepted Answer

A)   metalloids.
B)   a period.
C)   noble gases.
D)   a group.
E)   nonmetals.F) C) and D)
G) A) and E)

Question 13

Which member of the halogen family has the largest first ionization potential (energy)?

Accepted Answer

The answer of Which member of the halogen family has...

Question 14

The nineteenth century chemists arranged elements in the periodic table according to increasing

Accepted Answer

A)   atomic number.
B)   number of electrons.
C)   atomic mass.
D)   number of neutrons.
E)   nuclear binding energy.F) None of the above
G) A) and B)

Question 15

Which one of these ions has the largest radius?

Accepted Answer

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

Question 16

Which of these atoms has the greatest electron affinity?

Accepted Answer

A)   S
B)   P
C)   Ga
D)   Li
E)   ClF) A) and B)
G) A) and C)

Question 17

What elements and groups have properties that are most similar to those of chlorine?

Accepted Answer

A)   F, Br, I, and nonmetals in Group 7A
B)   Cl, K, C, and metals in Group 1B
C)   N, P, As, and lanthanides
D)   He, Ne, Xe, and nonmetals in Group 7A
E)   O, S, and PF) B) and E)
G) C) and D)

Question 18

Which of the following is a basic oxide?

Accepted Answer

A)   P4O10
B)   MgO
C)   Al2O3
D)   SO2
E)   Cl2O7F) C) and E)
G) C) and D)

Question 19

Atomic size decreases across a period due to an increase in the effective nuclear charge, Zeff.

Accepted Answer

A) True 
 B)False

Question 20

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

Accepted Answer

A)   nickel
B)   gold
C)   sulfur
D)   chlorine
E)   ironF) B) and D)
G) D) and E)

Exam 7: Electron Configuration and the Periodic Table

Which of the following is a basic oxide?

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Which of these atoms has the greatest electron affinity?

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Which of the following elements has the smallest atomic size?

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What is the electron configuration for Fr?

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In Mendeleev's version of the periodic table, the elements were arranged in order of increasing atomic number.

Correct AnswerverifiedShow Answer

The ionic radius is the distance between the nucleus and valence shell of an anion or cation. A cation is ________ than the parent atom it arises from, and an anion is ________ than the parent atom it arises from.

Correct AnswerverifiedShow Answer

Which one of these ions has the largest radius?

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The first ionization energies of noble gases are ________.

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Which of these choices is the general electron configuration for the outermost electrons of elements in the alkaline earth group?

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

Correct AnswerverifiedShow Answer

The chief contribution of physicist Henry Moseley to atomic theory was

Correct AnswerverifiedShow Answer

What elements and groups have properties that are most similar to those of chlorine?

Correct AnswerverifiedShow Answer

An oxide ion, O2-, has

Correct AnswerverifiedShow Answer

In neutral atoms, the 3d orbitals have higher energy than the 4s orbitals.

Correct AnswerverifiedShow Answer

Atomic size decreases across a period due to an increase in the effective nuclear charge, Zeff.

Correct AnswerverifiedShow Answer

The elements in a column of the periodic table are known as

Correct AnswerverifiedShow Answer

The nineteenth century chemists arranged elements in the periodic table according to increasing

Correct AnswerverifiedShow Answer

Which member of the halogen family has the largest first ionization potential (energy)?

Correct AnswerverifiedShow Answer

Explain how the elements in Group 6A differ from one another.

Correct AnswerverifiedO, S, and Se are non...View AnswerShow Answer

Which of the elements listed below has the greatest atomic radius?

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The ionic radius is the distance between the nucleus and valence shell of an anion or cation. A cation is than the parent atom it arises from, and an anion is than the parent atom it arises from.

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An oxide ion, O^2-, has

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Atomic size decreases across a period due to an increase in the effective nuclear charge, Z_eff.

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O, S, and Se are non...
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