Question 1

Define constructive interference.

Accepted Answer

Waves that...

Question 2

The number of cycles that pass through a stationary point is called

Accepted Answer

A)   wavelength.
B)   amplitude.
C)   frequency.
D)   area.
E)   median.

Question 3

In which orbital below would an electron (on average) be closest to the nucleus?

Accepted Answer

A)   2p
B)   4s
C)   2s
D)   5d
E)   3p

Question 4

Calculate the frequency of the light emitted a photon with a wavelength of 120 nm.

Accepted Answer

A)   1.03 × 1015 s-1
B)   2.50 × 1015 s-1
C)   5.38 × 1015s-1
D)   2.36 × 1015 s-1
E)   7.42 × 1015 s-1

Question 5

What is the wavelength of an electron (m = 9.11 × 10-28 g) moving at 1/5 the speed of light?

Accepted Answer

A)   9.36 × 10-9 m
B)   1.21 × 10-11 m
C)   6.73 × 10-8 m
D)   2.42 × 10-12 m
E)   4.85 × 10-10 m

Question 6

An FM radio station broadcasts electromagnetic radiation at a frequency of 92.6 MHz.The wavelength of this radiation is ________ m.

Accepted Answer

A)   3.24 × 
B)   3.24
C)   2.78 × 
D)   2.78 × 
E)   0.309

Question 7

Calculate the frequency of the green light emitted by a hydrogen atom with a wavelength of 486.1 nm.

Accepted Answer

A)   1.46 × 1014 s-1
B)   6.86 × 1014 s-1
C)   4.33 × 1014 s-1
D)   6.17 × 1014 s-1
E)   1.62 × 1014 s-1

Question 8

For hydrogen,what is the wavelength of the photon emitted when an electron drops from a 4d orbital to a 2s orbital in a hydrogen atom? The Rydberg constant is 1.097 × 10-2 nm-1.

Accepted Answer

A)   656.3 nm
B)   486.2 nm
C)   364.6 nm
D)   2.057 × 10-3 nm

Question 9

What is the maximum number of f orbitals that are possible in a given shell?

Accepted Answer

A)   1
B)   3
C)   7
D)   5
E)   9

Question 10

How many nodes are found in a 3s orbital?

Accepted Answer

A)   0
B)   1
C)   2
D)   3
E)   4

Question 11

Give the possible values for ml for a d orbital.

Accepted Answer

A)   0, 1, 2
B)   -1, 0, 1
C)   1, 2, 3
D)   -2, -1, 0, 1, 2

Question 12

When waves of equal amplitude from two sources are out of phase when they interact,it is called

Accepted Answer

A)   destructive interference.
B)   diffraction.
C)   constructive interference.
D)   effusion.
E)   amplitude.

Question 13

How many orbitals are present when l=3?

Accepted Answer

A)   1
B)   3
C)   5
D)   7
E)   9

Question 14

Which of the following types of waves are considered electromagnetic radiation:
A.Radio Waves; 
B.Sound Waves; 
C.Microwaves; 
D.Ocean Waves; 
E.Mechanical Waves

Accepted Answer

A)  A and B
B)  A and C
C)  B and D
D)  A,C,and E
E)  B,C,and D

Question 15

It is possible to determine the ionization energy for hydrogen using the Bohr equation.Calculate the ionization energy for an atom of hydrogen,making the assumption that ionization is the transition from -18 J B)  +2.18 × 10-18 J C)  +4.59 × 10-18 J D)  -4.59 × 10-18 J E)  +4.36 × 10-18 J" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   -2.18 × 10-18 J
B)   +2.18 × 10-18 J
C)   +4.59 × 10-18 J
D)   -4.59 × 10-18 J
E)   +4.36 × 10-18 J

Question 16

Why do atoms only emit certain wavelengths of light when they are excited?
 (Why do line spectra exist?)

Accepted Answer

The energies of atoms are quantized.When...

Question 17

Match between columns
                        Premises: n = 1 to n = 2
n = 3 to n = 1
n = 6 to n = 5
n = 5 to n = 3
n = 2 to n = 3

Accepted Answer

The Answer of 1280 nm and 122 nm and 657 is...

Question 18

Determine the mass of a ball with a wavelength of 3.45 × 10-34 m and a velocity of 6.55 m/s.

Accepted Answer

A)   0.293 g
B)   12.6 g
C)   293 g
D)   346 g
E)   3.41 g

Question 19

Identify the color that has a wavelength of 545 nm.

Accepted Answer

A)   blue
B)   green
C)   red
D)   yellow

Question 20

Which of the following colors of electromagnetic radiation has the shortest wavelength?

Accepted Answer

A)   blue
B)   violet
C)   orange
D)   green
E)   yellow

Exam 3: The Quantum Mechanical Model of the Atom

For hydrogen,what is the wavelength of the photon emitted when an electron drops from a 4d orbital to a 2s orbital in a hydrogen atom? The Rydberg constant is 1.097 × 10^-2 nm^-1.

Correct Answer
verified

Identify the color that has a wavelength of 545 nm.

Correct Answer
verified

How many nodes are found in a 3s orbital?

Correct Answer
verified

Match the following.

What is the wavelength of an electron (m = 9.11 × 10^-28 g) moving at 1/5 the speed of light?

Correct Answer
verified

In which orbital below would an electron (on average) be closest to the nucleus?

Correct Answer
verified

The number of cycles that pass through a stationary point is called

Correct Answer
verified

Calculate the frequency of the green light emitted by a hydrogen atom with a wavelength of 486.1 nm.

Correct Answer
verified

Which of the following colors of electromagnetic radiation has the shortest wavelength?

Correct Answer
verified

Calculate the frequency of the light emitted a photon with a wavelength of 120 nm.

Correct Answer
verified

How many orbitals are present when l=3?

Correct Answer
verified

When waves of equal amplitude from two sources are out of phase when they interact,it is called

Correct Answer
verified

Determine the mass of a ball with a wavelength of 3.45 × 10^-34m and a velocity of 6.55 m/s.

Correct Answer
verified

What is the maximum number of f orbitals that are possible in a given shell?

Correct Answer
verified

Why do atoms only emit certain wavelengths of light when they are excited? (Why do line spectra exist?)

Correct Answer
verified
The energies of atoms are quantized.When...
View Answer

It is possible to determine the ionization energy for hydrogen using the Bohr equation.Calculate the ionization energy for an atom of hydrogen,making the assumption that ionization is the transition from

Correct Answer
verified

Define constructive interference.

Correct Answer
verified
Waves that...
View Answer

Which of the following types of waves are considered electromagnetic radiation: A.Radio Waves; B.Sound Waves; C.Microwaves; D.Ocean Waves; E.Mechanical Waves

Correct Answer
verified

An FM radio station broadcasts electromagnetic radiation at a frequency of 92.6 MHz.The wavelength of this radiation is ________ m.

Correct Answer
verified

Give the possible values for m_l for a d orbital.

Correct Answer
verified

Exam 3: The Quantum Mechanical Model of the Atom

For hydrogen,what is the wavelength of the photon emitted when an electron drops from a 4d orbital to a 2s orbital in a hydrogen atom? The Rydberg constant is 1.097 × 10-2 nm-1.

Correct AnswerverifiedShow Answer

Identify the color that has a wavelength of 545 nm.

Correct AnswerverifiedShow Answer

How many nodes are found in a 3s orbital?

Correct AnswerverifiedShow Answer

Match the following.

What is the wavelength of an electron (m = 9.11 × 10-28 g) moving at 1/5 the speed of light?

Correct AnswerverifiedShow Answer

In which orbital below would an electron (on average) be closest to the nucleus?

Correct AnswerverifiedShow Answer

The number of cycles that pass through a stationary point is called

Correct AnswerverifiedShow Answer

Calculate the frequency of the green light emitted by a hydrogen atom with a wavelength of 486.1 nm.

Correct AnswerverifiedShow Answer

Which of the following colors of electromagnetic radiation has the shortest wavelength?

Correct AnswerverifiedShow Answer

Calculate the frequency of the light emitted a photon with a wavelength of 120 nm.

Correct AnswerverifiedShow Answer

How many orbitals are present when l=3?

Correct AnswerverifiedShow Answer

When waves of equal amplitude from two sources are out of phase when they interact,it is called

Correct AnswerverifiedShow Answer

Determine the mass of a ball with a wavelength of 3.45 × 10-34 m and a velocity of 6.55 m/s.

Correct AnswerverifiedShow Answer

What is the maximum number of f orbitals that are possible in a given shell?

Correct AnswerverifiedShow Answer

Why do atoms only emit certain wavelengths of light when they are excited? (Why do line spectra exist?)

Correct AnswerverifiedThe energies of atoms are quantized.When...View AnswerShow Answer

It is possible to determine the ionization energy for hydrogen using the Bohr equation.Calculate the ionization energy for an atom of hydrogen,making the assumption that ionization is the transition from

Correct AnswerverifiedShow Answer

Define constructive interference.

Correct AnswerverifiedWaves that...View AnswerShow Answer

Which of the following types of waves are considered electromagnetic radiation: A.Radio Waves; B.Sound Waves; C.Microwaves; D.Ocean Waves; E.Mechanical Waves

Correct AnswerverifiedShow Answer

An FM radio station broadcasts electromagnetic radiation at a frequency of 92.6 MHz.The wavelength of this radiation is ________ m.

Correct AnswerverifiedShow Answer

Give the possible values for ml for a d orbital.

Correct AnswerverifiedShow Answer

For hydrogen,what is the wavelength of the photon emitted when an electron drops from a 4d orbital to a 2s orbital in a hydrogen atom? The Rydberg constant is 1.097 × 10^-2 nm^-1.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

What is the wavelength of an electron (m = 9.11 × 10^-28 g) moving at 1/5 the speed of light?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Determine the mass of a ball with a wavelength of 3.45 × 10^-34m and a velocity of 6.55 m/s.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The energies of atoms are quantized.When...
View Answer

Correct Answer
verified

Correct Answer
verified
Waves that...
View Answer

Correct Answer
verified

Correct Answer
verified

Give the possible values for m_l for a d orbital.

Correct Answer
verified