Question 1

Which of the following electron transitions would be expected to absorb any light in the Bohr model of the atom?

Accepted Answer

A)  n = 7 to n = 2
B)  n = 5 to n = 6
C)  n = 1 to n = 3
D)  n = 3 to n = 5E) None of the above
F) A) and D)

Question 2

Arrange these ions in order of increasing ionic radius: K+ , P3− , S2− , Cl−.

Accepted Answer

A)  K+ − 2− 3−
B)  K+ 3−2− −
C)  P3− 2− − + 
D)  Cl− 2− 3− +
E)  Cl− 2− + 3−F) C) and D)
G) A) and B)

Question 3

Which of these species make an isoelectronic pair: Cl−, O2−, F, Ca2+, Fe3+?

Accepted Answer

A)  Ca2+ and Fe3+
B)  O2− and F
C)  F and Cl−
D)  Cl− and Ca2+
E)  None of the above species are part of an isoelectronic series.F) B) and C)
G) A) and C)

Question 4

Which of the following electron transitions would be expected to emit any light in the Bohr model of the atom?

Accepted Answer

A)  n = 1 to n = 3
B)  n = 5 to n = 6
C)  n = 2 to n = 5
D)  n = 4 to n = 3E) A) and D)
F) C) and D)

Question 5

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

Question 6

Using the periodic table, predict the charge on the common ion of rubidium.

Accepted Answer

A)  +1
B)  +2
C)  −1
D)  −2E) A) and C)
F) B) and C)

Question 7

How many orbitals can have the 3d description in a given atom?

Accepted Answer

A)  1
B)  2
C)  3
D)  5E) A) and D)
F) A) and B)

Question 8

What element is represented by the electron configuration 1s22s22p63s23p64s13d5?
A)Mn
B)Ca
C)K
D)Cr
E)V

Accepted Answer

Question 9

Which of the following elements has the largest atomic size?

Accepted Answer

A)  S
B)  Ca
C)  Ba
D)  Po
E)  RnF) B) and E)
G) C) and D)

Question 10

How many valence electrons does a tin (Sn)  atom have?

Accepted Answer

A)  2
B)  4
C)  14
D)  36
E)  50F) A) and D)
G) A) and C)

Question 11

How many dots does the Lewis dot symbol for chlorine have around it?

Accepted Answer

A)  1
B)  2
C)  5
D)  7
E)  17F) C) and D)
G) B) and C)

Question 12

How many electrons are in the 4d orbitals of Tc?

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  5F) B) and D)
G) A) and E)

Question 13

Which of these elements has the greatest metallic character?

Accepted Answer

A)  Br
B)  F
C)  Ge
D)  Mn
E)  ScF) A) and B)
G) A) and E)

Question 14

Select the arrangement of electromagnetic radiation which starts with the shortest wavelength and increases to longest wavelength.

Accepted Answer

A)  radio, infrared, ultraviolet, gamma rays
B)  radio, ultraviolet, infrared, gamma rays
C)  gamma rays, radio, ultraviolet, infrared
D)  gamma rays, infrared, radio, ultraviolet
E)  gamma rays, ultraviolet, infrared, radioF) A) and E)
G) C) and D)

Question 15

Each of the noble gases has a completely filled p subshell except for which one?

Accepted Answer

A)  Xenon
B)  Neon
C)  Radon
D)  Argon
E)  HeliumF) A) and C)
G) C) and E)

Question 16

Visible light, radio waves, microwave radiation, infrared, ultraviolet radiation, X-rays, and gamma rays all constitute the electromagnetic spectrum.Which of the following characteristics do all of these kinds of radiation share?

Accepted Answer

A)  They all have the ability to generate heat in objects.
B)  They all have the same frequencies.
C)  They are all the transmission of energy in the form of waves.
D)  They have equal energies.
E)  They have the same electron spin state.F) B) and C)
G) A) and E)

Question 17

The general electron configuration for atoms of all elements in Group 5A is

Accepted Answer

A)  ns2np6.
B)  ns2np5.
C)  ns2np4.
D)  ns2np3.
E)  ns2np1.F) A) and B)
G) C) and D)

Question 18

What is the electron configuration for tungsten?

Accepted Answer

A)  1s22s22p63s23p64s23d104p65s24d105p66s24f145d6
B)  1s22s22p63s23p64s23d104p65s24d105p66s14f145d5
C)  1s22s22p63s23p64s23d104p65s24d105p66s24f145d4
D)  1s22s22p63s23p64s23d104p65s24d105p66s24f145d7
E)  1s22s22p63s23p54s23d104p65s24d105p66s24f145d7F) A) and D)
G) C) and D)

Question 19

Arrange P, S, and O in order of increasing atomic radius.

Accepted Answer

A)  S 
B)  P 
C)  O 
D)  O 
E)  The answer cannot be determined from the data given.F) A) and D)
G) A) and C)

Question 20

Which of these atoms has the largest radius?

Accepted Answer

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

Exam 2: Electrons and the Periodic Table

What element is represented by the electron configuration 1s22s22p63s23p64s13d5? A)Mn B)Ca C)K D)Cr E)V

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How many orbitals can have the 3d description in a given atom?

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Which of the following electron transitions would be expected to emit any light in the Bohr model of the atom?

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Which of the following elements has the largest atomic size?

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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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What is the electron configuration for tungsten?

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Select the arrangement of electromagnetic radiation which starts with the shortest wavelength and increases to longest wavelength.

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Visible light, radio waves, microwave radiation, infrared, ultraviolet radiation, X-rays, and gamma rays all constitute the electromagnetic spectrum.Which of the following characteristics do all of these kinds of radiation share?

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Which of these elements has the greatest metallic character?

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Arrange P, S, and O in order of increasing atomic radius.

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How many valence electrons does a tin (Sn) atom have?

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How many electrons are in the 4d orbitals of Tc?

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The general electron configuration for atoms of all elements in Group 5A is

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Which of the following electron transitions would be expected to absorb any light in the Bohr model of the atom?

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How many dots does the Lewis dot symbol for chlorine have around it?

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Using the periodic table, predict the charge on the common ion of rubidium.

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Which of these atoms has the largest radius?

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Each of the noble gases has a completely filled p subshell except for which one?

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Arrange these ions in order of increasing ionic radius: K+ , P3− , S2− , Cl−.

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Which of these species make an isoelectronic pair: Cl−, O2−, F, Ca2+, Fe3+?

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What element is represented by the electron configuration 1s²2s²2p⁶3s²3p⁶4s¹3d⁵? A)Mn B)Ca C)K D)Cr E)V

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Arrange these ions in order of increasing ionic radius: K⁺ , P³⁻ , S²⁻ , Cl⁻.

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Which of these species make an isoelectronic pair: Cl⁻, O²⁻, F, Ca²⁺, Fe³⁺?

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