Question 1

___________ is an attempt to locate a subatomic particle acting as a wave even though it is impossible to know both the momentum and position of the particle simultaneously.

Accepted Answer

The Heisenberg uncertainty principle

Question 2

What is the difference in the electron configuration between carbon-14 and carbon-12?

Accepted Answer

There is no difference between the two electron configurations.

Question 3

The electronic structure 1s22s22p63s23p64s23d8 refers to the ground state of

Accepted Answer

A)  Kr.
B)  Ni.
C)  Fe.
D)  Pd.
E)  None of these choices is correct. B

Question 4

Which scientist proposed that energy of radiation is composed of extremely small indivisible packages called quanta? ("Quanta" is the plural of "quantum.")

Accepted Answer

A)  Max Planck
B)  Louis de Broglie
C)  Clinton Davisson
D)  Sir Isaac Newton
E)  Lothan Meyer

Question 5

The energy of an electron in the hydrogen atom is determined by

Accepted Answer

A)  the principal quantum number (n) only.
B)  the angular momentum quantum number (l) only.
C)  the principal and angular momentum quantum numbers (n & l) .
D)  the principal and magnetic quantum numbers (n & ml) .
E)  the principal,angular momentum,and magnetic quantum numbers.

Question 6

The solar radiation spectrum peaks at a wavelength of approximately 500 nm.Calculate the energy of one photon of that radiation (c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s).

Accepted Answer

A)  4 × 10-10 J
B)  6 × 1014 J
C)  1 × 10-27 J
D)  2 × 10-25 J
E)  4 × 10-19 J

Question 7

Calculate the energy,in joules,required to excite a hydrogen atom by causing an electronic transition from the n = 1 to the n = 4 principal energy level.Recall that the energy levels of the H atom are given by En = -2.18 × 10-18 J(1/n2 ).

Accepted Answer

A)  2.07 × 10-29 J
B)  2.19 × 105 J
C)  2.04 × 10-18 J
D)  3.27 × 10-17 J
E)  2.25 × 10-18 J

Question 8

___________ is the quantum number which describes the size of an orbital.

Accepted Answer

The answer of ___________ is the quantum number which describes...

Question 9

Select the correct electron configuration for Cu (Z = 29).

Accepted Answer

A)  [Ar]4s23d9
B)  [Ar]4s13d10
C)  [Ar]4s24p63d3
D)  [Ar]4s24d9
E)  [Ar]5s24d9

Question 10

If the energy of a photon is 1.32 × 10-18 J,what is its wavelength in nm (c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s)?

Accepted Answer

A)  1.51 × 10-7 nm
B)  151 nm
C)  1.99 × 1015 nm
D)  1.99 × 1024 nm
E)  None of these choices is correct.

Question 11

The shape of an atomic orbital is associated with

Accepted Answer

A)  the principal quantum number (n) .
B)  the angular momentum quantum number (l) .
C)  the magnetic quantum number (ml) .
D)  the spin quantum number (ms) .
E)  the magnetic and spin quantum numbers,together.

Question 12

_____________ is directly proportional to the frequency of a wave.

Accepted Answer

The answer of _____________ is directly proportional to the frequency...

Question 13

What element is represented by the electron configuration 1s22s22p63s23p64s23d104p65s14d10?

Accepted Answer

A)  Ag
B)  Rb
C)  Cd
D)  Sr
E)  Cu

Question 14

In the ___________,electrons are ejected from the surface of a metal exposed to light of a certain minimum frequency.

Accepted Answer

A)  aura effect
B)  photon effect
C)  ritzwald effect
D)  photoelectric effect
E)  None of the answers is correct.

Question 15

Which of the following elements has the largest number of unpaired electrons in the ground state?

Accepted Answer

A)  K
B)  V
C)  S
D)  Si
E)  Cl

Question 16

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,radio

Question 17

What is the electron configuration for silicon?

Accepted Answer

A)  1s22s22p63s13p3
B)  1s22s22p63s23p2
C)  1s22s22p63s4
D)  1s22s22p63p4
E)  1s22s22p63s23p3

Question 18

The unusual electron configuration of Mo indicates the

Accepted Answer

A)  unusual stability of half-filled d-orbitals.
B)  unpredictability of the electron filling patterns of the non-representative elements.
C)  unusually large size of Mo atoms.
D)  greater than expected electronegativity of Mo.

Question 19

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

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  5

Question 20

For the following equations
a. name the scientist to whom the equation is attributed.
b. in not more than three lines, explain clearly what the equation means or represents.
1. E = nhv
2. $\lambda$= h/mu

Accepted Answer

The answer of For the following equations
a. name the scientist...

Exam 6: Quantum Theory and the Electronic Structure of Atoms

___________ is an attempt to locate a subatomic particle acting as a wave even though it is impossible to know both the momentum and position of the particle simultaneously.

What is the difference in the electron configuration between carbon-14 and carbon-12?

The electronic structure 1s²2s²2p⁶3s²3p⁶4s²3d⁸ refers to the ground state of

Which scientist proposed that energy of radiation is composed of extremely small indivisible packages called quanta? ("Quanta" is the plural of "quantum.")

The energy of an electron in the hydrogen atom is determined by

The solar radiation spectrum peaks at a wavelength of approximately 500 nm.Calculate the energy of one photon of that radiation (c = 3.00 × 10⁸ m/s; h = 6.63 × 10^-34 J • s) .

Calculate the energy,in joules,required to excite a hydrogen atom by causing an electronic transition from the n = 1 to the n = 4 principal energy level.Recall that the energy levels of the H atom are given by En = -2.18 × 10^-18 J(1/n2 ) .

___________ is the quantum number which describes the size of an orbital.

Select the correct electron configuration for Cu (Z = 29) .

If the energy of a photon is 1.32 × 10^-1⁸ J,what is its wavelength in nm (c = 3.00 × 10⁸ m/s; h = 6.63 × 10^-34 J • s) ?

The shape of an atomic orbital is associated with

_____________ is directly proportional to the frequency of a wave.

What element is represented by the electron configuration 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s¹4d¹⁰?

In the ___________,electrons are ejected from the surface of a metal exposed to light of a certain minimum frequency.

Which of the following elements has the largest number of unpaired electrons in the ground state?

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

What is the electron configuration for silicon?

The unusual electron configuration of Mo indicates the

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

For the following equations a. name the scientist to whom the equation is attributed. b. in not more than three lines, explain clearly what the equation means or represents. 1. E = nhv 2. $\lambda$ = h/mu

Exam 6: Quantum Theory and the Electronic Structure of Atoms

___________ is an attempt to locate a subatomic particle acting as a wave even though it is impossible to know both the momentum and position of the particle simultaneously.

What is the difference in the electron configuration between carbon-14 and carbon-12?

The electronic structure 1s22s22p63s23p64s23d8 refers to the ground state of

Which scientist proposed that energy of radiation is composed of extremely small indivisible packages called quanta? ("Quanta" is the plural of "quantum.")

The energy of an electron in the hydrogen atom is determined by

The solar radiation spectrum peaks at a wavelength of approximately 500 nm.Calculate the energy of one photon of that radiation (c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s) .

Calculate the energy,in joules,required to excite a hydrogen atom by causing an electronic transition from the n = 1 to the n = 4 principal energy level.Recall that the energy levels of the H atom are given by En = -2.18 × 10-18 J(1/n2 ) .

___________ is the quantum number which describes the size of an orbital.

Select the correct electron configuration for Cu (Z = 29) .

If the energy of a photon is 1.32 × 10-18 J,what is its wavelength in nm (c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s) ?

The shape of an atomic orbital is associated with

_____________ is directly proportional to the frequency of a wave.

What element is represented by the electron configuration 1s22s22p63s23p64s23d104p65s14d10?

In the ___________,electrons are ejected from the surface of a metal exposed to light of a certain minimum frequency.

Which of the following elements has the largest number of unpaired electrons in the ground state?

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

What is the electron configuration for silicon?

The unusual electron configuration of Mo indicates the

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

For the following equations a. name the scientist to whom the equation is attributed. b. in not more than three lines, explain clearly what the equation means or represents. 1. E = nhv 2. λ\lambdaλ = h/mu

The electronic structure 1s²2s²2p⁶3s²3p⁶4s²3d⁸ refers to the ground state of

The solar radiation spectrum peaks at a wavelength of approximately 500 nm.Calculate the energy of one photon of that radiation (c = 3.00 × 10⁸ m/s; h = 6.63 × 10^-34 J • s) .

Calculate the energy,in joules,required to excite a hydrogen atom by causing an electronic transition from the n = 1 to the n = 4 principal energy level.Recall that the energy levels of the H atom are given by En = -2.18 × 10^-18 J(1/n2 ) .

If the energy of a photon is 1.32 × 10^-1⁸ J,what is its wavelength in nm (c = 3.00 × 10⁸ m/s; h = 6.63 × 10^-34 J • s) ?

What element is represented by the electron configuration 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s¹4d¹⁰?

For the following equations a. name the scientist to whom the equation is attributed. b. in not more than three lines, explain clearly what the equation means or represents. 1. E = nhv 2. $\lambda$ = h/mu