Question 1

Fraunhofer lines are due to _______.

Accepted Answer

A)  the emission of radiation by atoms.
B)  the absorption of radiation by atoms.
C)  the photoelectric effect.
D)  chemical reactions in the sun.
E)  nuclear reactions in the sun.F) A) and B)
G) A) and C)

Question 2

Which of the following statements about electron spin and the spin quantum number, ms, is NOT true?

Accepted Answer

A)  The idea of electron spin was introduced to explain pairs of lines in atomic emission spectra.
B)  The electron creates a magnetic field because it is a charged particle moving through space.
C)  The spin of an electron is quantized.
D)  Electrons in the same orbital can have the same spin.
E)  The spin quantum number can only have one of two values, +1/2 and -1/2 .F) A) and E)
G) A) and B)

Question 3

Which one of the following sources produces the highest energy photons?

Accepted Answer

A)  a doctor's x-ray source
B)  a heat lamp in a restaurant
C)  a microwave oven
D)  gamma rays from a star
E)  radio waves from a local stationF) D) and E)
G) A) and E)

Question 4

When the principal quantum number = 3, what values are possible for the other quantum numbers $ l $ and ml ?

Accepted Answer

can equal 0, 1, and 2.
For

=...

Question 5

Which of the following elements would you expect to have the lowest first ionization energy?

Accepted Answer

A)  N
B)  As
C)  P
D)  Bi
E)  SbF) A) and E)
G) A) and D)

Question 6

Which of the following is the correct electron configuration for silicon?

Accepted Answer

A)    1s22s21p63s22p2  1 s^{2} 2 s^{2} 1 p^{6} 3 s^{2} 2 p^{2} 1s22s21p63s22p2 
B)    1s22s22p63s4  1 s^{2} 2 s^{2} 2 p^{6} 3 s^{4} 1s22s22p63s4 
C)    1s22s22p63s23p2 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{2} 1s22s22p63s23p2 
D)    1s22s22p63s13p3 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{1} 3 p^{3} 1s22s22p63s13p3 
E)    1s22s22p62d4 1 s^{2} 2 s^{2} 2 p^{6} 2 d^{4} 1s22s22p62d4  F) A) and B)
G) None of the above

Question 7

Mercury lamps emit blue light with  λ\lambdaλ = 436 nm.What is the energy of these photons in joules?

Accepted Answer

A)  4.56 * 10-19 J
B)  4.56 * 10-28J
C)  1.97 * 1044 J
D)  2.19 * 1018 J
E)  2.19 * 10-18 J F) A) and B)
G) A) and C)

Question 8

What are the principal and angular momentum quantum numbers for a 4 f f f  orbital?

Accepted Answer

A)  n = 4,  l l l  = 2
B)  n = 3,  l l l = 4
C)  n = 4,  l l l  = 3
D)  n = 4,  l l l  = 4
E)  n = 4,  l l l  = 1 F) A) and B)
G) A) and C)

Question 9

Orbitals within a given subshell have the same _______.

Accepted Answer

A)  principal and angular momentum quantum numbers.
B)  principal quantum numbers.
C)  angular momentum quantum numbers.
D)  angular momentum and magnetic quantum numbers.
E)  angular momentum and spin quantum numbers.F) B) and D)
G) D) and E)

Question 10

Which of the following has the largest atomic radius?

Accepted Answer

A)  Cs
B)  Rb
C)  Kr
D)  Xe
E)  IF) B) and C)
G) B) and D)

Question 11

Which row 2 element probably has the following successive ionization energies:

Accepted Answer

A)  Be
B)  B
C)  N
D)  O
E)  NeF) B) and D)
G) A) and C)

Question 12

What is the velocity of an O2 molecule if its de Broglie wavelength is 26 pm? 
(1 amu = 1.66054 *10-27 kg.)

Accepted Answer

A)  46 m/s
B)  960 m/s
C)  790 m/s
D)  390 m/s
E)  480 m/sF) A) and E)
G) D) and E)

Question 13

How many unpaired electrons does nickel have?

Accepted Answer

A)  0
B)  2
C)  3
D)  4
E)  8F) A) and C)
G) D) and E)

Question 14

What is the wavelength ( λ\lambdaλ , in meters)  of a radio station operating at a frequency of 99.6 MHz?

Accepted Answer

A)  3.01*106 m
B)  3.01 m
C)  3.32 *10-7 m
D)  0.332 m
E)  3.32 m F) D) and E)
G) B) and D)

Question 15

Copper commonly forms a cation with a charge of 1+; however, the element to the right of it in the periodic table Zn) typically only forms a cation with a 2+charge.Use your knowledge of electron configurations to explain this observation.

Accepted Answer

Copper has the electronic conf...

Question 16

Which of the following shows the correct expression for the ionization energy indicated?

Accepted Answer

A)    IE3:Al(g) →Al3+(g) +3e− \mathrm{IE}_{3}: \mathrm{Al}(g)  \rightarrow \mathrm{Al}^{3+}(g) +3 \mathrm{e}^{-} IE3​:Al(g) →Al3+(g) +3e− 
B)    IE1:Cl(g) →Cl+(g) +e− \mathrm{IE}_{1}: \mathrm{Cl}(g)  \rightarrow \mathrm{Cl}^{+}(g) +\mathrm{e}^{-} IE1​:Cl(g) →Cl+(g) +e− 
C)    IE2:Mg(g) →Mg2+(g) +2e− \mathrm{IE}_{2}: \mathrm{Mg}(g)  \rightarrow \mathrm{Mg}^{2+}(g) +2 \mathrm{e}^{-} IE2​:Mg(g) →Mg2+(g) +2e− 
D)    IE1:Na(s) →Na+(g) +e− \mathrm{IE}_{1}: \mathrm{Na}(s)  \rightarrow \mathrm{Na}^{+}(g) +\mathrm{e}^{-} IE1​:Na(s) →Na+(g) +e− 
E)    IE3:O2(g) →O2+(g) +e− \mathrm{IE}_{3}: \mathrm{O}_{2}(g)  \rightarrow \mathrm{O}_{2}^{+}(g) +\mathrm{e}^{-} IE3​:O2​(g) →O2+​(g) +e−  F) A) and B)
G) A) and C)

Question 17

Which statement below about an electron shell in a hydrogen-like atom is FALSE?

Accepted Answer

A)  Higher shells are at a higher energy.
B)  All electrons in the same shell occupy regions in space that have the same shape.
C)  The principal quantum number, n, is used to specify a shell.
D)  The size of the shell increases as n increases.
E)  A shell can contain no more than N2 orbitals.F) D) and E)
G) A) and E)

Question 18

Astronomers have detected hydrogen atoms in interstellar space in the n = 732 energy level.Suppose an atom in this excited state emits a photon and undergoes a transition from n = 732 to n = 632.How much energy does the atom lose as a result of this transition? What is the frequency of this radiation? In which spectral region does this radiation lie?

Accepted Answer

1.39 *10^-24 J of en...

Question 19

The Fraunhofer lines are evidence that _______.

Accepted Answer

A)  atoms contain nuclei.
B)  atoms contain charged particles.
C)  mass is equivalent to energy.
D)  atoms absorb light.
E)  atoms emit light.F) A) and E)
G) A) and C)

Question 20

Which of the following lasers emits photons with the lowest energy?

Accepted Answer

A)  a Nd:YAG laser with  λ\lambdaλ  = 1064 nm
B)  an Ar+ laser with  λ\lambdaλ  = 514.5 nm
C)  a Kr+ laser with  λ\lambdaλ  = 647 nm
D)  an ArF laser with  λ\lambdaλ = 193 nm
E)  a HeNe laser with  λ\lambdaλ = 633 nm F) A) and D)
G) C) and E)

Exam 3: Atomic Structure Explaining the Properties of Elements

Mercury lamps emit blue light with $\lambda$ = 436 nm.What is the energy of these photons in joules?

Correct Answer
verified

Correct Answer
verified
1.39 *10^-24 J of en...
View Answer

What is the wavelength ( $\lambda$ , in meters) of a radio station operating at a frequency of 99.6 MHz?

Correct Answer
verified

What is the velocity of an O₂ molecule if its de Broglie wavelength is 26 pm? (1 amu = 1.66054 *10^-27 kg.)

Correct Answer
verified

Orbitals within a given subshell have the same _______.

Correct Answer
verified

Fraunhofer lines are due to _______.

Correct Answer
verified

Which of the following statements about electron spin and the spin quantum number, m_s, is NOT true?

Correct Answer
verified

Copper commonly forms a cation with a charge of 1+; however, the element to the right of it in the periodic table Zn) typically only forms a cation with a 2+charge.Use your knowledge of electron configurations to explain this observation.

Correct Answer
verified
Copper has the electronic conf...
View Answer

Which of the following shows the correct expression for the ionization energy indicated?

Correct Answer
verified

The Fraunhofer lines are evidence that _______.

Correct Answer
verified

Which one of the following sources produces the highest energy photons?

Correct Answer
verified

How many unpaired electrons does nickel have?

Correct Answer
verified

Which statement below about an electron shell in a hydrogen-like atom is FALSE?

Correct Answer
verified

Which of the following lasers emits photons with the lowest energy?

Correct Answer
verified

What are the principal and angular momentum quantum numbers for a 4 $f$ orbital?

Correct Answer
verified

Which of the following elements would you expect to have the lowest first ionization energy?

Correct Answer
verified

When the principal quantum number = 3, what values are possible for the other quantum numbers $l$ and m_l ?

Correct Answer
verified
can equal 0, 1, and 2.
For =...
View Answer

Which of the following is the correct electron configuration for silicon?

Correct Answer
verified

Which row 2 element probably has the following successive ionization energies:

Correct Answer
verified

Which of the following has the largest atomic radius?

Correct Answer
verified

Exam 3: Atomic Structure Explaining the Properties of Elements

Mercury lamps emit blue light with λ\lambdaλ = 436 nm.What is the energy of these photons in joules?

Correct AnswerverifiedShow Answer

Correct Answerverified1.39 *10-24 J of en...View AnswerShow Answer

What is the wavelength ( λ\lambdaλ , in meters) of a radio station operating at a frequency of 99.6 MHz?

Correct AnswerverifiedShow Answer

What is the velocity of an O2 molecule if its de Broglie wavelength is 26 pm? (1 amu = 1.66054 *10-27 kg.)

Correct AnswerverifiedShow Answer

Orbitals within a given subshell have the same _______.

Correct AnswerverifiedShow Answer

Fraunhofer lines are due to _______.

Correct AnswerverifiedShow Answer

Which of the following statements about electron spin and the spin quantum number, ms, is NOT true?

Correct AnswerverifiedShow Answer

Copper commonly forms a cation with a charge of 1+; however, the element to the right of it in the periodic table Zn) typically only forms a cation with a 2+charge.Use your knowledge of electron configurations to explain this observation.

Correct AnswerverifiedCopper has the electronic conf...View AnswerShow Answer

Which of the following shows the correct expression for the ionization energy indicated?

Correct AnswerverifiedShow Answer

The Fraunhofer lines are evidence that _______.

Correct AnswerverifiedShow Answer

Which one of the following sources produces the highest energy photons?

Correct AnswerverifiedShow Answer

How many unpaired electrons does nickel have?

Correct AnswerverifiedShow Answer

Which statement below about an electron shell in a hydrogen-like atom is FALSE?

Correct AnswerverifiedShow Answer

Which of the following lasers emits photons with the lowest energy?

Correct AnswerverifiedShow Answer

What are the principal and angular momentum quantum numbers for a 4 f f f orbital?

Correct AnswerverifiedShow Answer

Which of the following elements would you expect to have the lowest first ionization energy?

Correct AnswerverifiedShow Answer

When the principal quantum number = 3, what values are possible for the other quantum numbers l l l and ml ?

Correct Answerverified can equal 0, 1, and 2.For =...View AnswerShow Answer

Which of the following is the correct electron configuration for silicon?

Correct AnswerverifiedShow Answer

Which row 2 element probably has the following successive ionization energies:

Correct AnswerverifiedShow Answer

Which of the following has the largest atomic radius?

Correct AnswerverifiedShow Answer

Mercury lamps emit blue light with $\lambda$ = 436 nm.What is the energy of these photons in joules?

Correct Answer
verified

Correct Answer
verified
1.39 *10^-24 J of en...
View Answer

What is the wavelength ( $\lambda$ , in meters) of a radio station operating at a frequency of 99.6 MHz?

Correct Answer
verified

What is the velocity of an O₂ molecule if its de Broglie wavelength is 26 pm? (1 amu = 1.66054 *10^-27 kg.)

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Which of the following statements about electron spin and the spin quantum number, m_s, is NOT true?

Correct Answer
verified

Correct Answer
verified
Copper has the electronic conf...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

What are the principal and angular momentum quantum numbers for a 4 $f$ orbital?

Correct Answer
verified

Correct Answer
verified

When the principal quantum number = 3, what values are possible for the other quantum numbers $l$ and m_l ?

Correct Answer
verified
can equal 0, 1, and 2.
For =...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified