Question 1

Consider the following adjectives used to describe types of spectrum: continuous, line, atomic, emission, absorption
How many of them are appropriate to describe the spectrum of radiation absorbed by a sample of mercury vapor?

Accepted Answer

A)   one
B)   two
C)   three
D)   four
E)   fiveF) A) and C)
G) A) and B)

Question 2

Consider the following adjectives used to describe types of spectrum: continuous, line, atomic, emission, absorption
How many of them are appropriate to describe the spectrum of radiation given off by a black body?

Accepted Answer

A)   none
B)   one
C)   two
D)   three
E)   fourF) All of the above
G) B) and D)

Question 3

In the quantum mechanical treatment of the hydrogen atom, the probability of finding an electron at any point is proportional to the wave function $ \varPsi$.

Accepted Answer

A) True 
 B)False

Question 4

Continuous spectra are characteristic of molecules in the gas phase.

Accepted Answer

A) True 
 B)False

Question 5

The Rydberg equation is an example of an empirical equation.

Accepted Answer

A) True 
 B)False

Question 6

The orientation in space 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)   None of these choices is correct.F) All of the above
G) A) and D)

Question 7

Electromagnetic radiation can be specified by its wavelength ( λ\lambdaλ ) , its frequency ( ν
uν )  or its period () . The period is the time it takes one complete wavelength to pass a point in space. Based on this information, what is the mathematical relationship between  ν
uν  and ?

Accepted Answer

A)   ( ν
uν  = 1/) 
B)   ( ν
uν = ) 
C)   ( =  ν
uν /c) 
D)   (c =  * ν
uν ) 
E)   ( = c/ ν
uν )  F) C) and D)
G) A) and C)

Question 8

Which of the following is a correct set of quantum numbers for an electron in a 3d orbital?

Accepted Answer

A)   n = 3, l = 0, ml = -1
B)   n = 3, l = 1, ml = +3
C)   n = 3, l = 2, ml = 3
D)   n = 3, l = 3, ml = +2
E)   n = 3, l = 2, ml = -2F) B) and E)
G) A) and B)

Question 9

In not more than three lines for each answer, briefly outline one important scientific contribution of each of the following:
A) Planck
B) de Broglie
C) Heisenberg

Accepted Answer

A) Planck is responsible for first propo...

Question 10

A sprinter must average 24.0 mi/h to win a 100-m dash in 9.30 s. What is his wavelength at this speed if his mass is 84.5 kg?

Accepted Answer

A)   7.29* 10¯37 m
B)   3.26 * 10¯37 m
C)   5.08 *10¯30 m
D)   1.34 * 10¯30 m
E)   None of these choices is correct.F) A) and B)
G) C) and D)

Question 11

According to the Heisenberg uncertainty principle, if the uncertainty in the speed of an electron is 3.5 *103 m/s, the uncertainty in its position (in m)  is at least:

Accepted Answer

A)   1.7 * 10¯8 m
B)   6.6 * 10¯8 m
C)   17 m
D)   66 m
E)   None of these choices is correct.F) A) and B)
G) None of the above

Question 12

Who developed an empirical equation from which the wavelengths of lines in the spectrum of hydrogen atoms can be calculated?

Accepted Answer

A)   Planck
B)   de Broglie
C)   Bohr
D)   Rutherford
E)   RydbergF) B) and E)
G) B) and C)

Question 13

Which of the following is a correct set of quantum numbers for an electron in a 5f orbital?

Accepted Answer

A)   n = 5, l = 3, ml = +1
B)   n = 5, l = 2, ml = +3
C)   n = 4, l = 3, ml = 0
D)   n = 4, l = 2, ml = +1
E)   n = 5, l = 4, ml = 3F) None of the above
G) C) and D)

Question 14

Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to greatest energy.

Accepted Answer

A)   radio, visible, infrared, ultraviolet
B)   infrared, visible, ultraviolet, microwave
C)   visible, ultraviolet, infrared, gamma rays
D)   X-radiation, visible, infrared, microwave
E)   microwave, infrared, visible, ultravioletF) B) and D)
G) A) and D)

Question 15

In the Rydberg equation, for a fixed value of n1, the longest wavelength line has n2 = $\infty$.

Accepted Answer

A) True 
 B)False

Question 16

An infrared wave has a wavelength of 6.5 * 10¯4 cm. What is this distance in angstroms, Å?

Accepted Answer

A)   6.5 *10¯4 Å
B)   2.2 * 10¯4 Å
C)   4.6 *103 Å
D)   6.5 * 104 Å
E)   6.5 * 106 ÅF) A) and B)
G) B) and E)

Question 17

In an atom, the square of an electron's wave function

Accepted Answer

A)   becomes zero at the nucleus.
B)   is smallest near the nucleus.
C)   is largest near the nucleus.
D)   may be zero at more than one point.
E)   tends to infinity at large distances from the nucleus.F) A) and B)
G) A) and E)

Question 18

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

Accepted Answer

A)   1 kilohertz
B)   1 terahertz
C)   1 dekahertz
D)   1 gigahertz
E)   1 megahertzF) A) and D)
G) B) and E)

Question 19

The interference pattern seen when light passes through narrow, closely spaced slits, is due to

Accepted Answer

A)   diffraction.
B)   reflection.
C)   refraction.
D)   dispersion.
E)   deflection.F) All of the above
G) C) and D)

Question 20

A photon has an energy of 5.53 * 10¯17 J. What is its frequency in s¯1?

Accepted Answer

A)   3.66 * 10¯50 s¯1
B)   1.20 * 10¯17 s¯1
C)   3.59 * 10¯9 s¯1
D)   2.78 * 108 s¯1
E)   8.35 * 1016 s¯1F) A) and D)
G) A) and E)

Exam 7: Quantum Theory and Atomic Structure

Consider the following adjectives used to describe types of spectrum: continuous, line, atomic, emission, absorption How many of them are appropriate to describe the spectrum of radiation absorbed by a sample of mercury vapor?

Correct Answer
verified

In an atom, the square of an electron's wave function

Correct Answer
verified

An infrared wave has a wavelength of 6.5 * 10¯⁴ cm. What is this distance in angstroms, Å?

Correct Answer
verified

Correct Answer
verified

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

Correct Answer
verified

In the Rydberg equation, for a fixed value of n₁, the longest wavelength line has n₂ = $\infty$ .

Correct Answer
verified

Which of the following is a correct set of quantum numbers for an electron in a 5f orbital?

Correct Answer
verified

In not more than three lines for each answer, briefly outline one important scientific contribution of each of the following: A) Planck B) de Broglie C) Heisenberg

Correct Answer
verified
A) Planck is responsible for first propo...
View Answer

Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to greatest energy.

Correct Answer
verified

The orientation in space of an atomic orbital is associated with

Correct Answer
verified

The interference pattern seen when light passes through narrow, closely spaced slits, is due to

Correct Answer
verified

Who developed an empirical equation from which the wavelengths of lines in the spectrum of hydrogen atoms can be calculated?

Correct Answer
verified

The Rydberg equation is an example of an empirical equation.

Correct Answer
verified

Continuous spectra are characteristic of molecules in the gas phase.

Correct Answer
verified

Which of the following is a correct set of quantum numbers for an electron in a 3d orbital?

Correct Answer
verified

In the quantum mechanical treatment of the hydrogen atom, the probability of finding an electron at any point is proportional to the wave function $\varPsi$ .

Correct Answer
verified

Consider the following adjectives used to describe types of spectrum: continuous, line, atomic, emission, absorption How many of them are appropriate to describe the spectrum of radiation given off by a black body?

Correct Answer
verified

A sprinter must average 24.0 mi/h to win a 100-m dash in 9.30 s. What is his wavelength at this speed if his mass is 84.5 kg?

Correct Answer
verified

A photon has an energy of 5.53 * 10¯¹⁷ J. What is its frequency in s¯¹?

Correct Answer
verified

According to the Heisenberg uncertainty principle, if the uncertainty in the speed of an electron is 3.5 *10³ m/s, the uncertainty in its position (in m) is at least:

Correct Answer
verified

Exam 7: Quantum Theory and Atomic Structure

Consider the following adjectives used to describe types of spectrum: continuous, line, atomic, emission, absorption How many of them are appropriate to describe the spectrum of radiation absorbed by a sample of mercury vapor?

Correct AnswerverifiedShow Answer

In an atom, the square of an electron's wave function

Correct AnswerverifiedShow Answer

An infrared wave has a wavelength of 6.5 * 10¯4 cm. What is this distance in angstroms, Å?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

In the Rydberg equation, for a fixed value of n1, the longest wavelength line has n2 = ∞\infty∞ .

Correct AnswerverifiedShow Answer

Which of the following is a correct set of quantum numbers for an electron in a 5f orbital?

Correct AnswerverifiedShow Answer

In not more than three lines for each answer, briefly outline one important scientific contribution of each of the following: A) Planck B) de Broglie C) Heisenberg

Correct AnswerverifiedA) Planck is responsible for first propo...View AnswerShow Answer

Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to greatest energy.

Correct AnswerverifiedShow Answer

The orientation in space of an atomic orbital is associated with

Correct AnswerverifiedShow Answer

The interference pattern seen when light passes through narrow, closely spaced slits, is due to

Correct AnswerverifiedShow Answer

Who developed an empirical equation from which the wavelengths of lines in the spectrum of hydrogen atoms can be calculated?

Correct AnswerverifiedShow Answer

The Rydberg equation is an example of an empirical equation.

Correct AnswerverifiedShow Answer

Continuous spectra are characteristic of molecules in the gas phase.

Correct AnswerverifiedShow Answer

Which of the following is a correct set of quantum numbers for an electron in a 3d orbital?

Correct AnswerverifiedShow Answer

In the quantum mechanical treatment of the hydrogen atom, the probability of finding an electron at any point is proportional to the wave function Ψ \varPsiΨ .

Correct AnswerverifiedShow Answer

Consider the following adjectives used to describe types of spectrum: continuous, line, atomic, emission, absorption How many of them are appropriate to describe the spectrum of radiation given off by a black body?

Correct AnswerverifiedShow Answer

A sprinter must average 24.0 mi/h to win a 100-m dash in 9.30 s. What is his wavelength at this speed if his mass is 84.5 kg?

Correct AnswerverifiedShow Answer

A photon has an energy of 5.53 * 10¯17 J. What is its frequency in s¯1?

Correct AnswerverifiedShow Answer

According to the Heisenberg uncertainty principle, if the uncertainty in the speed of an electron is 3.5 *103 m/s, the uncertainty in its position (in m) is at least:

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

An infrared wave has a wavelength of 6.5 * 10¯⁴ cm. What is this distance in angstroms, Å?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

In the Rydberg equation, for a fixed value of n₁, the longest wavelength line has n₂ = $\infty$ .

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A) Planck is responsible for first propo...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

In the quantum mechanical treatment of the hydrogen atom, the probability of finding an electron at any point is proportional to the wave function $\varPsi$ .

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

A photon has an energy of 5.53 * 10¯¹⁷ J. What is its frequency in s¯¹?

Correct Answer
verified

According to the Heisenberg uncertainty principle, if the uncertainty in the speed of an electron is 3.5 *10³ m/s, the uncertainty in its position (in m) is at least:

Correct Answer
verified