Question 1

The orbital diagram for a ground state carbon atom is

Accepted Answer

The answer of The orbital diagram for a ground state...

Question 2

An AM radio station broadcasts at a frequency of 1270 kHz.Calculate the wavelength of the broadcast signal in meters.(c = 2.9979 * 108 m/s)

Accepted Answer

The answer of An AM radio station broadcasts at a...

Question 3

Write the ground state electron configuration for Ni.

Accepted Answer

The answer of Write the ground state electron configuration for...

Question 4

Electrons in an orbital with l = 3 are in a/an

Accepted Answer

A) d orbital. 
B) f orbital. 
C) g orbital. 
D) p orbital. 
E) s orbital. 
A) d orbital. 
B) f orbital. 
C) g orbital. 
D) p orbital. 
E) s orbital.

Question 5

Which element has the following ground-state electron configuration? [Kr]5s24d105p2

Accepted Answer

A) Sn 
B) Sb 
C) Pb 
D) Ge 
E) Te 
A) Sn 
B) Sb 
C) Pb 
D) Ge 
E) Te

Question 6

The frequency of the emitted light from a cesium atom is an intensive property.

Accepted Answer

A) True 
 B)False

Question 7

According to de Broglie's equation, the wavelength associated with the motion of a particle increases as the particle mass decreases.

Accepted Answer

A) True 
 B)False

Question 8

A ground-state atom of vanadium has ___ unpaired electrons and is _____.

Accepted Answer

A) 0, diamagnetic 
B) 2, diamagnetic 
C) 3, paramagnetic 
D) 5, paramagnetic 
E) 4, diamagnetic 
A) 0, diamagnetic 
B) 2, diamagnetic 
C) 3, paramagnetic 
D) 5, paramagnetic 
E) 4, diamagnetic

Question 9

Complete this sentence: Atoms emit visible and ultraviolet light

Accepted Answer

A) as electrons jump from lower energy levels to higher levels. 
B) as the atoms condense from a gas to a liquid. 
C) as electrons jump from higher energy levels to lower levels. 
D) as they are heated and the solid melts to form a liquid. 
E) as the electrons move about the atom within an orbit. 
A) as electrons jump from lower energy levels to higher levels. 
B) as the atoms condense from a gas to a liquid. 
C) as electrons jump from higher energy levels to lower levels. 
D) as they are heated and the solid melts to form a liquid. 
E) as the electrons move about the atom within an orbit.

Question 10

The longest wavelength of light that causes electrons to be ejected from the surface of a copper plate is 243 nm. What is the maximum velocity of the electrons ejected when light of wavelength 200.nm shines on a copper plate?

Accepted Answer

A) 1.48 * 106 m/s 
B) 6.22 * 105 m/s 
C) 4.67 * 104 m/s 
D) 1.97 * 104 m/s 
E) 1.34 * 106 m/s 
A) 1.48 * 106 m/s 
B) 6.22 * 105 m/s 
C) 4.67 * 104 m/s 
D) 1.97 * 104 m/s 
E) 1.34 * 106 m/s

Question 11

What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 * 102 nm?

Accepted Answer

A) 256 kJ 
B) 1.71 * 105 J 
C) 4.72 * 10-43 J 
D) 12.4 kJ 
E) 2.12 * 1042 J 
A) 256 kJ 
B) 1.71 * 105 J 
C) 4.72 * 10-43 J 
D) 12.4 kJ 
E) 2.12 * 1042 J

Question 12

Calculate the frequency of the light emitted by a hydrogen atom during a transition of its electron from the n = 6 to the n = 3 principal energy level. Recall that for hydrogen En = -2.18 * 10-18 J(1/n2).

Accepted Answer

A) 1.64 * 1015 /s 
B) 9.13 * 1013 /s 
C) 3.65 * 1014 /s 
D) 1.82 * 10-19 /s 
E) 2.74 * 1014/s 
A) 1.64 * 1015 /s 
B) 9.13 * 1013 /s 
C) 3.65 * 1014 /s 
D) 1.82 * 10-19 /s 
E) 2.74 * 1014/s

Question 13

Which of the following is the ground-state electron configuration of a calcium atom?

Accepted Answer

A) [Ne]3s2 
B) [Ne]3s23p6 
C) [Ar]4s13d1 
D) [Ar]4s2 
E) [Ar]3d2 
A) [Ne]3s2 
B) [Ne]3s23p6 
C) [Ar]4s13d1 
D) [Ar]4s2 
E) [Ar]3d2

Question 14

Electrons can be used to probe the arrangement of atoms on a solid surface if the wavelength of the electrons is comparable with the spacing between the atoms. Which of the following electron velocities would be appropriate for use in this application if the atoms are separated by 0.320 nm?

Accepted Answer

A) 2.27 * 106 m/s 
B) 1.24 * 103 m/s 
C) 3.00 * 108 m/s 
D) 4.41 * 106 m/s 
E) 8.06 * 103 m/s 
A) 2.27 * 106 m/s 
B) 1.24 * 103 m/s 
C) 3.00 * 108 m/s 
D) 4.41 * 106 m/s 
E) 8.06 * 103 m/s

Question 15

An FM radio station broadcasts at a frequency of 101.7 MHz.Calculate the wavelength of the broadcast signal in meters.(c = 2.9979 * 108 m/s)

Accepted Answer

The answer of An FM radio station broadcasts at a...

Question 16

What is the total number of electrons possible in the 2p orbitals?

Accepted Answer

The answer of What is the total number of electrons...

Question 17

Calculate the wavelength of the light emitted by a hydrogen atom during a transition of its electron from the n = 4 to the n = 1 principal energy level. Recall that for hydrogen En = -2.18 * 10-18 J(1/n2)

Accepted Answer

A) 97.2 nm 
B) 82.6 nm 
C) 365 nm 
D) 0.612 nm 
E) 6.8 * 10-18 nm 
A) 97.2 nm 
B) 82.6 nm 
C) 365 nm 
D) 0.612 nm 
E) 6.8 * 10-18 nm

Question 18

Which one of the following sets of quantum numbers is not possible?

Accepted Answer

The answer of Which one of the following sets of...

Question 19

Write the ground state electron configuration for an iodine atom.

Accepted Answer

The answer of Write the ground state electron configuration for...

Question 20

What is the binding energy (in J/mol or kJ/mol)of an electron in a metal whose threshold frequency for photoelectrons is 2.50 * 1014 /s?

Accepted Answer

A) 99.7 kJ/mol 
B) 1.66 * 10-19 J/mol 
C) 2.75 * 10-43 J/mol 
D) 7.22 * 1017 kJ/mol 
E) 1.20 * 10-6 J/mol 
A) 99.7 kJ/mol 
B) 1.66 * 10-19 J/mol 
C) 2.75 * 10-43 J/mol 
D) 7.22 * 1017 kJ/mol 
E) 1.20 * 10-6 J/mol

Exam 7: Quantum Theory and the Electronic Structure of Atoms

The orbital diagram for a ground state carbon atom is

An AM radio station broadcasts at a frequency of 1270 kHz.Calculate the wavelength of the broadcast signal in meters.(c = 2.9979 * 108 m/s)

Write the ground state electron configuration for Ni.

Electrons in an orbital with l = 3 are in a/an

Which element has the following ground-state electron configuration? [Kr]5s24d105p2

The frequency of the emitted light from a cesium atom is an intensive property.

According to de Broglie's equation, the wavelength associated with the motion of a particle increases as the particle mass decreases.

A ground-state atom of vanadium has ___ unpaired electrons and is _____.

Complete this sentence: Atoms emit visible and ultraviolet light

The longest wavelength of light that causes electrons to be ejected from the surface of a copper plate is 243 nm. What is the maximum velocity of the electrons ejected when light of wavelength 200.nm shines on a copper plate?

What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 * 102 nm?

Calculate the frequency of the light emitted by a hydrogen atom during a transition of its electron from the n = 6 to the n = 3 principal energy level. Recall that for hydrogen En = -2.18 * 10-18 J(1/n2).

Which of the following is the ground-state electron configuration of a calcium atom?

Electrons can be used to probe the arrangement of atoms on a solid surface if the wavelength of the electrons is comparable with the spacing between the atoms. Which of the following electron velocities would be appropriate for use in this application if the atoms are separated by 0.320 nm?

An FM radio station broadcasts at a frequency of 101.7 MHz.Calculate the wavelength of the broadcast signal in meters.(c = 2.9979 * 108 m/s)

What is the total number of electrons possible in the 2p orbitals?

Calculate the wavelength of the light emitted by a hydrogen atom during a transition of its electron from the n = 4 to the n = 1 principal energy level. Recall that for hydrogen En = -2.18 * 10-18 J(1/n2)

Which one of the following sets of quantum numbers is not possible?

Write the ground state electron configuration for an iodine atom.

What is the binding energy (in J/mol or kJ/mol)of an electron in a metal whose threshold frequency for photoelectrons is 2.50 * 1014 /s?

Chemistry: The Study of Change

Atoms, Molecules, and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solution

Gases

Thermo-Chemistry

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Chemistry in the Atmosphere

Entropy, Free Energy, and Equilibrium

Electrochemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metal Chemistry and Coordination Compounds

Nuclear Chemistry

Organic Chemistry

Synthetic and Natural Organic Polymers

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An AM radio station broadcasts at a frequency of 1270 kHz.Calculate the wavelength of the broadcast signal in meters.(c = 2.9979 * 10⁸ m/s)

Which element has the following ground-state electron configuration? [Kr]5s²4d¹⁰5p²

A ground-state atom of vanadium has _ unpaired electrons and is ___.

What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 * 10² nm?

Calculate the frequency of the light emitted by a hydrogen atom during a transition of its electron from the n = 6 to the n = 3 principal energy level. Recall that for hydrogen E_n = -2.18 * 10^-18 J(1/n²).

An FM radio station broadcasts at a frequency of 101.7 MHz.Calculate the wavelength of the broadcast signal in meters.(c = 2.9979 * 10⁸ m/s)

Calculate the wavelength of the light emitted by a hydrogen atom during a transition of its electron from the n = 4 to the n = 1 principal energy level. Recall that for hydrogen E_n = -2.18 * 10^-18 J(1/n²)

What is the binding energy (in J/mol or kJ/mol)of an electron in a metal whose threshold frequency for photoelectrons is 2.50 * 10¹⁴/s?