Question 1

A certain blue light has a wavelength oF453 nm ( l = 453 nm). What is the energy (in Joules) of one photon of this blue light with this wavelength?

Accepted Answer

A)  9.97×10 - 49 J 
B)  2.99×10 - 40 J 
C)  1.46×10 - 27 J 
D)  4.37×10 - 19 J 
E)  6.86×1026 J 
A)  9.97×10 - 49 J 
B)  2.99×10 - 40 J 
C)  1.46×10 - 27 J 
D)  4.37×10 - 19 J 
E)  6.86×1026 J D

Question 2

How many unpaired electrons are present in a neutral, ground state nitrogen atom?

Accepted Answer

A)  0 
B)  1 
C)  3 
D)  5 
E)  7 
A)  0 
B)  1 
C)  3 
D)  5 
E)  7 C

Question 3

What quantum number(s) provide(s) information with respect to the size of an atomic orbital?

Accepted Answer

A)  Principal quantum number, "n" 
B)  Angular Momentum quantum number, "l" 
C)  Magnetic quantum number, "ml" 
D)  Electron spin quantum number, "ms" 
E)  Principle and Angular Momentum quantum numbers 
A)  Principal quantum number, "n" 
B)  Angular Momentum quantum number, "l" 
C)  Magnetic quantum number, "ml" 
D)  Electron spin quantum number, "ms" 
E)  Principle and Angular Momentum quantum numbers A

Question 4

From the restrictions on the three quantum numbers that define an orbital, which set of three quantum numbers listed below is forbidden ?

Accepted Answer

A)  n = 3,   = 3,   = 3 
B)  n = 3,   = 2,   = - 2 
C)  n = 3,   = 2,   = +2 
D)  n = 3,   = 1,   = +1 
E)  n = 3,   = 0,   = 0 
A)  n = 3,   = 3,   = 3 
B)  n = 3,   = 2,   = - 2 
C)  n = 3,   = 2,   = +2 
D)  n = 3,   = 1,   = +1 
E)  n = 3,   = 0,   = 0

Question 5

What is the ground state electron configuration of oxygen?

Accepted Answer

A)  1s22s22p4 
B)  1s22s22p2 
C)  1s22s22p3 
D)  1s22s23s4 
E)  none of these 
A)  1s22s22p4 
B)  1s22s22p2 
C)  1s22s22p3 
D)  1s22s23s4 
E)  none of these

Question 6

The element with a ground state electron configuration of 1s22s22p1 is

Accepted Answer

A)  B 
B)  C 
C)  O 
D)  F 
E)  Ne 
A)  B 
B)  C 
C)  O 
D)  F 
E)  Ne

Question 7

Calculate the frequency of light whose wavelength is 5.0×10 - 6 meters.

Accepted Answer

A)  6.0×1013 s - 1 
B)  2.0×105 s - 1 
C)  3.0×108 s - 1 
D)  4.0×10 - 20 s - 1 
E)  none of these 
A)  6.0×1013 s - 1 
B)  2.0×105 s - 1 
C)  3.0×108 s - 1 
D)  4.0×10 - 20 s - 1 
E)  none of these

Question 8

How many possible orientations are allowed when   = 2?
(d-type sublevel; How many possible   values are possible?)

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  5 
E)  7 
A)  1 
B)  2 
C)  3 
D)  5 
E)  7

Question 9

If waves are hitting the beach every 2.0 seconds and are 12 m apart, what is the velocity of the waves?

Accepted Answer

A)  6.0 m/s 
B)  24 m/s 
C)  18 m/s 
D)  2.0 m/s 
E)  none of these 
A)  6.0 m/s 
B)  24 m/s 
C)  18 m/s 
D)  2.0 m/s 
E)  none of these

Question 10

What quantum number(s) is(are) required to completely describe a subshell , a set of orbitals with the same energy and shape?
I. Principal quantum number
II. Angular Momentum quantum number
III. Magnetic quantum number

Accepted Answer

A)  I only 
B)  I and II 
C)  I and III 
D)  II and III 
E)  I, II and III 
A)  I only 
B)  I and II 
C)  I and III 
D)  II and III 
E)  I, II and III

Question 11

What is the correct electronic configuration for Nickel (Z = 28)?

Accepted Answer

A)  [Ar]3d10 
B)  1s22s22p63s23p63d84s2 
C)  1s22s22p63s23p63d10 
D)  1s22s22p63s23p64s23d8 
E)  None of these 
A)  [Ar]3d10 
B)  1s22s22p63s23p63d84s2 
C)  1s22s22p63s23p63d10 
D)  1s22s22p63s23p64s23d8 
E)  None of these

Question 12

Three sets of quantum numbers are listed below. Pick the best answer.
I. n = 2,   = 2,   = 2, m s = 1 / 2
II. n = 4,   = 0,   = 0, m s = 1 / 2
III. n = 3,   = 2,   = 3, m s = 1 / 2

Accepted Answer

A)  I and II are allowed sets, III is not 
B)  II and III are allowed sets, I is not 
C)  all 3 are allowed sets 
D)  only II is an allowed set 
E)  all 3 are not allowed sets 
A)  I and II are allowed sets, III is not 
B)  II and III are allowed sets, I is not 
C)  all 3 are allowed sets 
D)  only II is an allowed set 
E)  all 3 are not allowed sets

Question 13

How many electrons can occupy a single 3px atomic orbital ?

Accepted Answer

A)  zero 
B)  one 
C)  two 
D)  three 
E)  six 
A)  zero 
B)  one 
C)  two 
D)  three 
E)  six

Question 14

What is the correct ground state electronic configuration of Lead (Z = 82)?

Accepted Answer

A)  1s22s22p63s23p63d104s24p64d104f145s25p65d106s26p2 
B)  [Xe]6s26d106p2 
C)  [Xe]6s26f146d106p2 
D)  [Xe]6s24f145d106p2 
E)  [Xe]6s26p2 
A)  1s22s22p63s23p63d104s24p64d104f145s25p65d106s26p2 
B)  [Xe]6s26d106p2 
C)  [Xe]6s26f146d106p2 
D)  [Xe]6s24f145d106p2 
E)  [Xe]6s26p2

Question 15

The frequency of a photon of electromagnetic radiation with an energy of 7.3×10 - 18 J is

Accepted Answer

A)  2.7×10 - 8 s - 1 
B)  9.9×1019 s - 1 
C)  2.0×1016 s - 1 
D)  1.1×1016 s - 1 
E)  none of these 
A)  2.7×10 - 8 s - 1 
B)  9.9×1019 s - 1 
C)  2.0×1016 s - 1 
D)  1.1×1016 s - 1 
E)  none of these

Question 16

One type of sunburn occurs on exposure to UV light of wavelength equal to 325 nm. What is the frequency given in sec - 1 for this wavelength?

Accepted Answer

A)  1.08×10 - 15 sec - 1 
B)  9.23×10 - 4 sec - 1 
C)  9.75×101 sec - 1 
D)  9.23×105 sec - 1 
E)  9.23×1014 sec - 1 
A)  1.08×10 - 15 sec - 1 
B)  9.23×10 - 4 sec - 1 
C)  9.75×101 sec - 1 
D)  9.23×105 sec - 1 
E)  9.23×1014 sec - 1

Question 17

What is the maximum number of electrons that can occupy a 5f subshell?

Accepted Answer

A)  2 
B)  5 
C)  6 
D)  10 
E)  14 
A)  2 
B)  5 
C)  6 
D)  10 
E)  14

Question 18

What is the order for filling the following subshells with electrons?
4d, 4f, 5s, 5p, 6s

Accepted Answer

A)  4d, 4f, 5s, 5p, 6s 
B)  5s, 6s, 5p, 4d, 4f 
C)  5s, 4d, 5p, 6s, 4f 
D)  4d, 4f, 5p, 5s, 6s 
E)  6s, 5p, 5s, 4f, 4d 
A)  4d, 4f, 5s, 5p, 6s 
B)  5s, 6s, 5p, 4d, 4f 
C)  5s, 4d, 5p, 6s, 4f 
D)  4d, 4f, 5p, 5s, 6s 
E)  6s, 5p, 5s, 4f, 4d

Question 19

The element with a ground state electron configuration of 1s22s22p4 is

Accepted Answer

A)  B 
B)  C 
C)  O 
D)  F 
E)  Ne 
A)  B 
B)  C 
C)  O 
D)  F 
E)  Ne

Question 20

Calculate the frequency of light emitted when an electron in a hydrogen atom goes from the n = 5 shell to the n = 2 shell.

Accepted Answer

A)  6.9×1014 s - 1 
B)  8.2×1013 s - 1 
C)  7.8×1014 s - 1 
D)  1.2×1014 s - 1 
E)  none of these 
A)  6.9×1014 s - 1 
B)  8.2×1013 s - 1 
C)  7.8×1014 s - 1 
D)  1.2×1014 s - 1 
E)  none of these

Exam 7: Electronic Structure

A certain blue light has a wavelength oF453 nm ( l = 453 nm). What is the energy (in Joules) of one photon of this blue light with this wavelength?

How many unpaired electrons are present in a neutral, ground state nitrogen atom?

What quantum number(s) provide(s) information with respect to the size of an atomic orbital?

From the restrictions on the three quantum numbers that define an orbital, which set of three quantum numbers listed below is forbidden ?

What is the ground state electron configuration of oxygen?

The element with a ground state electron configuration of 1s22s22p1 is

Calculate the frequency of light whose wavelength is 5.0×10 - 6 meters.

How many possible orientations are allowed when = 2? (d-type sublevel; How many possible values are possible?)

If waves are hitting the beach every 2.0 seconds and are 12 m apart, what is the velocity of the waves?

What quantum number(s) is(are) required to completely describe a subshell , a set of orbitals with the same energy and shape? I. Principal quantum number II. Angular Momentum quantum number III. Magnetic quantum number

What is the correct electronic configuration for Nickel (Z = 28)?

Three sets of quantum numbers are listed below. Pick the best answer. I. n = 2, = 2, = 2, m s = 1 / 2 II. n = 4, = 0, = 0, m s = 1 / 2 III. n = 3, = 2, = 3, m s = 1 / 2

How many electrons can occupy a single 3px atomic orbital ?

What is the correct ground state electronic configuration of Lead (Z = 82)?

The frequency of a photon of electromagnetic radiation with an energy of 7.3×10 - 18 J is

One type of sunburn occurs on exposure to UV light of wavelength equal to 325 nm. What is the frequency given in sec - 1 for this wavelength?

What is the maximum number of electrons that can occupy a 5f subshell?

What is the order for filling the following subshells with electrons? 4d, 4f, 5s, 5p, 6s

The element with a ground state electron configuration of 1s22s22p4 is

Calculate the frequency of light emitted when an electron in a hydrogen atom goes from the n = 5 shell to the n = 2 shell.

Introduction to Chemistry

Atoms, Molecules, and Ions

Equations, the Mole, and Chemical Formulas

Chemical Reactions in Solution

Thermochemistry

The Gaseous State

The Periodic Table: Structure and Trends

Chemical Bonds

Molecular Structure and Bonding Theories

Liquids and Solids

Solutions

Chemical Kinetics

Chemical Equilibrium

Solutions of Acids and Bases

Reactions Between Acids and Bases

Chemical Thermodynamics

Electrochemistry

Transition Metals, Coordination Chemistry and Metallurgy

The Chemistry of Hydrogen, Elements in Groups 3A Through 6A, and the Noble Gases

Nuclear Chemistry

Organic Chemistry and Biochemistry

Filters

A certain blue light has a wavelength oF₄53 nm ( l = 453 nm). What is the energy (in Joules) of one photon of this blue light with this wavelength?

The element with a ground state electron configuration of 1s²2s²2p¹ is

Calculate the frequency of light whose wavelength is 5.0×10^{- 6} meters.

How many electrons can occupy a single 3p_x atomic orbital ?

The frequency of a photon of electromagnetic radiation with an energy of 7.3×10^{- 18} J is

One type of sunburn occurs on exposure to UV light of wavelength equal to 325 nm. What is the frequency given in sec^{- 1} for this wavelength?

The element with a ground state electron configuration of 1s²2s²2p⁴ is