Question 1

The colors of the visible spectrum are blue, green, orange, red, violet, and yellow.Of these colors, _______ has the longest wavelength.

Accepted Answer

The answer of The colors of the visible spectrum are...

Question 2

When the electron in a hydrogen atom falls from the n = 3 excited energy level to the ground state energy level, a photon with wavelength  λ\lambdaλ  is emitted. An electron having this same wavelength would have a velocity of

Accepted Answer

A)  7.10 * 103 m/s
B)  2.93 * 106 m/s
C)  2.93 * 103 m/s
D)  7.10 m/s
E)  3.00 * 108 m/s F) B) and E)
G) C) and D)

Question 3

If a hydrogen atom and a helium atom are traveling at the same speed,

Accepted Answer

A)  the wavelength of the hydrogen atom will be about 4 times longer than the wavelength of the helium atom.
B)  the wavelength of the hydrogen atom will be about 2 times longer than the wavelength of the helium.
C)  the wavelength of the hydrogen atom will be roughly equal to the wavelength of the helium atom.
D)  the wavelength of the helium atom will be about 2 times longer than the wavelength of the hydrogen atom.
E)  the wavelength of the helium atom will be about 4 times longer than the wavelength of the hydrogen atom.F) A) and E)
G) All of the above

Question 4

Lanthanide (or rare earth elements) have atoms or ions with partially filled

Accepted Answer

A)  s subshells.
B)  p subshells.
C)  d subshells.
D)  f subshells.
E)  g subshells.F) A) and B)
G) A) and C)

Question 5

The ground-state electron configuration of Cr, Mo, and Ag are exceptions to the Aufbau principle. Which of the following is the electron configuration for Mo?

Accepted Answer

A)  [Kr]5s14d5
B)  [Kr]5s24d4
C)  [Xe]6s25d4
D)  [Ar]4s24d4
E)  [Kr]5s24d6F) C) and D)
G) All of the above

Question 6

How many electrons are there in the 2nd principal energy level (n = 2) of a phosphorus atom?

Accepted Answer

A)  3
B)  5
C)  6
D)  8
E)  10F) D) and E)
G) B) and E)

Question 7

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

Accepted Answer

There is n...

Question 8

What is the ground-state electron configuration for chlorine?

Accepted Answer

1s²2s²2p⁶3s²3p...

Question 9

The electron configuration of a ground-state copper atom is

Accepted Answer

A)  [Ar]4s24d4
B)  [Ar]4s24p63d3
C)  [Ar]4s23d9
D)  [Ar]3d9
E)  [Ar]4s13d10F) A) and C)
G) B) and D)

Question 10

Calculate the wavelength associated with a 20Ne+ ion moving at a velocity of 2.0 * 105 m/s.The atomic mass of Ne-20 is 19.992 amu.

Accepted Answer

A)  1.0 * 10-13 m
B)  1.0 * 10-16 m
C)  1.0 * 10-18 m
D)  9.7 * 1012 m
E)  2.0 * 10-13 cmF) A) and B)
G) A) and E)

Question 11

The number of orbitals in a d subshell is

Accepted Answer

A)  1
B)  2
C)  3
D)  5
E)  7F) A) and D)
G) B) and E)

Question 12

What is the wavelength of radiation that has a frequency of 5.39 * 1014 s-1? (c = 2.9979 * 108 m/s)

Accepted Answer

A)  1.80 * 10-3 nm
B)  556 nm
C)  618 nm
D)  6180 nm
E)  1.61 * 1023 nmF) B) and C)
G) C) and D)

Question 13

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?

Accepted Answer

A)  6.46 * 10-16 J
B)  6.46 * 10-25 J
C)  2.46 *10-4 J
D)  12.4 kJ
E)  246 kJF) B) and E)
G) B) and D)

Question 14

The second line of the Balmer series occurs at a wavelength of 486.1 nm. What is the energy difference between the initial and final levels of the hydrogen atom in this emission process?

Accepted Answer

A)  2.44 * 1018 J
B)  4.09 * 10-19 J
C)  4.09 * 10-22 J
D)  4.09 * 10-28 J
E)  1.07 * 10-48 JF) B) and E)
G) C) and E)

Question 15

Which choice lists two elements with ground-state electron configurations that are well known exceptions to the Aufbau principle?

Accepted Answer

A)  Cu and C
B)  Cr and Cu
C)  Cs and Cl
D)  Rb and Co
E)  Fe and CoF) A) and B)
G) A) and C)

Exam 7: Quantum Theory and the Electronic Structure of Atoms

The colors of the visible spectrum are blue, green, orange, red, violet, and yellow.Of these colors, _______ has the longest wavelength.

Correct Answer
verified

The number of orbitals in a d subshell is

Correct Answer
verified

What is the wavelength of radiation that has a frequency of 5.39 * 10¹⁴ s^-1? (c = 2.9979 * 10⁸ m/s)

Correct Answer
verified

What is the ground-state electron configuration for chlorine?

Correct Answer
verified
1s²2s²2p⁶3s²3p...
View Answer

Calculate the wavelength associated with a ²⁰Ne⁺ ion moving at a velocity of 2.0 * 10⁵ m/s.The atomic mass of Ne-20 is 19.992 amu.

Correct Answer
verified

Lanthanide (or rare earth elements) have atoms or ions with partially filled

Correct Answer
verified

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?

Correct Answer
verified

The second line of the Balmer series occurs at a wavelength of 486.1 nm. What is the energy difference between the initial and final levels of the hydrogen atom in this emission process?

Correct Answer
verified

The ground-state electron configuration of Cr, Mo, and Ag are exceptions to the Aufbau principle. Which of the following is the electron configuration for Mo?

Correct Answer
verified

Which choice lists two elements with ground-state electron configurations that are well known exceptions to the Aufbau principle?

Correct Answer
verified

The electron configuration of a ground-state copper atom is

Correct Answer
verified

When the electron in a hydrogen atom falls from the n = 3 excited energy level to the ground state energy level, a photon with wavelength $\lambda$ is emitted. An electron having this same wavelength would have a velocity of

Correct Answer
verified

How many electrons are there in the 2nd principal energy level (n = 2) of a phosphorus atom?

Correct Answer
verified

If a hydrogen atom and a helium atom are traveling at the same speed,

Correct Answer
verified

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

Correct Answer
verified
There is n...
View Answer

Exam 7: Quantum Theory and the Electronic Structure of Atoms

The colors of the visible spectrum are blue, green, orange, red, violet, and yellow.Of these colors, _______ has the longest wavelength.

Correct AnswerverifiedShow Answer

The number of orbitals in a d subshell is

Correct AnswerverifiedShow Answer

What is the wavelength of radiation that has a frequency of 5.39 * 1014 s-1? (c = 2.9979 * 108 m/s)

Correct AnswerverifiedShow Answer

What is the ground-state electron configuration for chlorine?

Correct Answerverified1s22s22p63s23p...View AnswerShow Answer

Calculate the wavelength associated with a 20Ne+ ion moving at a velocity of 2.0 * 105 m/s.The atomic mass of Ne-20 is 19.992 amu.

Correct AnswerverifiedShow Answer

Lanthanide (or rare earth elements) have atoms or ions with partially filled

Correct AnswerverifiedShow Answer

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?

Correct AnswerverifiedShow Answer

The second line of the Balmer series occurs at a wavelength of 486.1 nm. What is the energy difference between the initial and final levels of the hydrogen atom in this emission process?

Correct AnswerverifiedShow Answer

The ground-state electron configuration of Cr, Mo, and Ag are exceptions to the Aufbau principle. Which of the following is the electron configuration for Mo?

Correct AnswerverifiedShow Answer

Which choice lists two elements with ground-state electron configurations that are well known exceptions to the Aufbau principle?

Correct AnswerverifiedShow Answer

The electron configuration of a ground-state copper atom is

Correct AnswerverifiedShow Answer

When the electron in a hydrogen atom falls from the n = 3 excited energy level to the ground state energy level, a photon with wavelength λ\lambdaλ is emitted. An electron having this same wavelength would have a velocity of

Correct AnswerverifiedShow Answer

How many electrons are there in the 2nd principal energy level (n = 2) of a phosphorus atom?

Correct AnswerverifiedShow Answer

If a hydrogen atom and a helium atom are traveling at the same speed,

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedThere is n...View AnswerShow Answer

Correct Answer
verified

Correct Answer
verified

What is the wavelength of radiation that has a frequency of 5.39 * 10¹⁴ s^-1? (c = 2.9979 * 10⁸ m/s)

Correct Answer
verified

Correct Answer
verified
1s²2s²2p⁶3s²3p...
View Answer

Calculate the wavelength associated with a ²⁰Ne⁺ ion moving at a velocity of 2.0 * 10⁵ m/s.The atomic mass of Ne-20 is 19.992 amu.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

When the electron in a hydrogen atom falls from the n = 3 excited energy level to the ground state energy level, a photon with wavelength $\lambda$ is emitted. An electron having this same wavelength would have a velocity of

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
There is n...
View Answer