Question 1

Calculate the de Broglie wavelength of a pen with a mass of 14.28 g travelling at 16.3 m s-1.

Accepted Answer

A) 1.76 × 10-31 m 
B) 6.43 × 10-37 m 
C) 2.85 × 10-33 m 
D) 8.19 × 10-32 m 
E) 5.30 × 10-34 m 
A) 1.76 × 10-31 m 
B) 6.43 × 10-37 m 
C) 2.85 × 10-33 m 
D) 8.19 × 10-32 m 
E) 5.30 × 10-34 m

Question 2

What is the photoelectric effect?

Accepted Answer

Many metals emit electrons whe

Question 3

Choose the paramagnetic species from below.

Accepted Answer

A) Ca 
B) O2- 
C) Cd2+ 
D) Zn 
E) Nb3+ 
A) Ca 
B) O2- 
C) Cd2+ 
D) Zn 
E) Nb3+

Question 4

How many different values of l are possible in the third principal level?

Accepted Answer

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

Question 5

The element that corresponds to the electron configuration 1s22s22p2 is ________.

Accepted Answer

A) nitrogen 
B) lithium 
C) hydrogen 
D) phosphorus 
E) carbon 
A) nitrogen 
B) lithium 
C) hydrogen 
D) phosphorus 
E) carbon

Question 6

Choose the diamagnetic species from below.

Accepted Answer

A) Sn2+ 
B) Br 
C) P 
D) Cr 
E) None of the above is diamagnetic. 
A) Sn2+ 
B) Br 
C) P 
D) Cr 
E) None of the above is diamagnetic.

Question 7

It is possible to determine the ionization energy for hydrogen using the Bohr equation.Calculate the ionization energy (in kJ)for a mole of hydrogen atoms,making the assumption that ionization is the transition from n = 1 to n = ∞.

Accepted Answer

A) 7.62 × 103 kJ 
B) 2.76 × 103 kJ 
C) 1.31 × 103 kJ 
D) 3.62 × 103 kJ 
E) 5.33 × 103 kJ 
A) 7.62 × 103 kJ 
B) 2.76 × 103 kJ 
C) 1.31 × 103 kJ 
D) 3.62 × 103 kJ 
E) 5.33 × 103 kJ

Question 8

Choose the ground-state electron configuration for Zr2+.

Accepted Answer

A) [Kr]5s2 
B) [Kr]5s24d2 
C) [Kr]4d2 
D) [Kr] 
E) [Kr]5s24d4 
A) [Kr]5s2 
B) [Kr]5s24d2 
C) [Kr]4d2 
D) [Kr] 
E) [Kr]5s24d4

Question 9

Give all possible values of l for a 3 sublevel.

Accepted Answer

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

Question 10

Define diffraction.

Accepted Answer

When a wave encounters an obst

Question 11

Electromagnetic radiation with a wavelength of 585 nm appears as yellow light to the human eye.The energy of one photon of this light is ________ J.

Accepted Answer

A) 2.94 × $10 ^ { 18 }$ 
B) 1.16 × 10-31 
C) 1.16 × 10-22 
D) 3.40 × $10 ^ { - 28 }$ 
E) 3.40 × $10 ^ { - 19 }$ 
A) 2.94 × $10 ^ { 18 }$ 
B) 1.16 × 10-31 
C) 1.16 × 10-22 
D) 3.40 × $10 ^ { - 28 }$ 
E) 3.40 × $10 ^ { - 19 }$

Question 12

Calculate the wavelength of light associated with the transition from n = 1 to n = 3 in the hydrogen atom.

Accepted Answer

A) 103 nm 
B) 155 nm 
C) 646 nm 
D) 971 nm 
E) 136 nm 
A) 103 nm 
B) 155 nm 
C) 646 nm 
D) 971 nm 
E) 136 nm

Question 13

Electromagnetic radiation with a wavelength of 525 nm appears as green light to the human eye.The frequency of this light is ________ $s ^ { - 1 }$ .

Accepted Answer

A) 1.75 × $10 ^ { - 15 }$ 
B) 5.71 × $10 ^ { 5 }$ 
C) 1.58 × $10 ^ { 11 }$ 
D) 1.58 × $10 ^ { 2 }$ 
E) 5.71 × $10 ^ { 14 }$ 
A) 1.75 × $10 ^ { - 15 }$ 
B) 5.71 × $10 ^ { 5 }$ 
C) 1.58 × $10 ^ { 11 }$ 
D) 1.58 × $10 ^ { 2 }$ 
E) 5.71 × $10 ^ { 14 }$

Question 14

Calculate the wavelength (in nm)of the blue light emitted by a mercury lamp with a frequency of 6.88 × 1014 Hz.

Accepted Answer

A) 229 nm 
B) 436 nm 
C) 206 nm 
D) 485 nm 
E) 675 nm 
A) 229 nm 
B) 436 nm 
C) 206 nm 
D) 485 nm 
E) 675 nm

Question 15

Calculate the orbital for the hydrogen atom that contains an electron with an energy of -4.45 × 10-20 J.

Accepted Answer

A) n = 5 
B) n = 4 
C) n = 1 
D) n = 3 
E) n = 7 
A) n = 5 
B) n = 4 
C) n = 1 
D) n = 3 
E) n = 7

Question 16

Calculate the wavelength of light absorbed by a hydrogen atom when an electron undergoes an n = 2 to n = 4 transmission.

Accepted Answer

A) 433.9 nm 
B) 410.0 nm 
C) 1093 nm 
D) 486.0 nm 
E) 3295 nm 
A) 433.9 nm 
B) 410.0 nm 
C) 1093 nm 
D) 486.0 nm 
E) 3295 nm

Question 17

How many orbitals are there in the fourth shell?

Accepted Answer

A) 3 
B) 4 
C) 6 
D) 16 
A) 3 
B) 4 
C) 6 
D) 16

Question 18

Calculate the mass of a pickup truck travelling at 100.0 km h-1 and a de Broglie wavelength of 1.24 × 10-38 m.

Accepted Answer

A) 1924 kg 
B) 1134 kg 
C) 2347 kg 
D) 2841 kg 
E) 941.6 kg 
A) 1924 kg 
B) 1134 kg 
C) 2347 kg 
D) 2841 kg 
E) 941.6 kg

Question 19

Determine the mass of a ball with a velocity of 35.1 m s-1 and a wavelength of 8.92 × 10-34 m.

Accepted Answer

A) 26.0 g 
B) 594 g 
C) 2.08 g 
D) 47.3 g 
E) 21.2 g 
A) 26.0 g 
B) 594 g 
C) 2.08 g 
D) 47.3 g 
E) 21.2 g

Question 20

Calculate the energy change associated with the transition from n = 4 to n = 1 in the hydrogen atom.

Accepted Answer

A) +4.89 × 10-18 J 
B) +1.64 × 10-18 J 
C) -6.12 × 10-18 J 
D) +3.55 × 10-18 J 
E) -2.04 × 10-18 J 
A) +4.89 × 10-18 J 
B) +1.64 × 10-18 J 
C) -6.12 × 10-18 J 
D) +3.55 × 10-18 J 
E) -2.04 × 10-18 J

Exam 7: The Quantum-Mechanical Model of the Atom

Calculate the de Broglie wavelength of a pen with a mass of 14.28 g travelling at 16.3 m s-1.

What is the photoelectric effect?

Choose the paramagnetic species from below.

How many different values of l are possible in the third principal level?

The element that corresponds to the electron configuration 1s22s22p2 is ________.

Choose the diamagnetic species from below.

It is possible to determine the ionization energy for hydrogen using the Bohr equation.Calculate the ionization energy (in kJ)for a mole of hydrogen atoms,making the assumption that ionization is the transition from n = 1 to n = ∞.

Choose the ground-state electron configuration for Zr2+.

Give all possible values of l for a 3 sublevel.

Define diffraction.

Electromagnetic radiation with a wavelength of 585 nm appears as yellow light to the human eye.The energy of one photon of this light is ________ J.

Calculate the wavelength of light associated with the transition from n = 1 to n = 3 in the hydrogen atom.

Electromagnetic radiation with a wavelength of 525 nm appears as green light to the human eye.The frequency of this light is ________ s−1s ^ { - 1 }s−1 .

Calculate the wavelength (in nm)of the blue light emitted by a mercury lamp with a frequency of 6.88 × 1014 Hz.

Calculate the orbital for the hydrogen atom that contains an electron with an energy of -4.45 × 10-20 J.

Calculate the wavelength of light absorbed by a hydrogen atom when an electron undergoes an n = 2 to n = 4 transmission.

How many orbitals are there in the fourth shell?

Calculate the mass of a pickup truck travelling at 100.0 km h-1 and a de Broglie wavelength of 1.24 × 10-38 m.

Determine the mass of a ball with a velocity of 35.1 m s-1 and a wavelength of 8.92 × 10-34 m.

Calculate the energy change associated with the transition from n = 4 to n = 1 in the hydrogen atom.

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Molecules,compounds,and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding II: Molecular Shapes, valence Bond Theory, and Molecular Orbital Theory

Liquids, solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry II: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

Calculate the de Broglie wavelength of a pen with a mass of 14.28 g travelling at 16.3 m s^-1.

The element that corresponds to the electron configuration 1s²2s²2p² is ________.

Choose the ground-state electron configuration for Zr²⁺.

Electromagnetic radiation with a wavelength of 525 nm appears as green light to the human eye.The frequency of this light is ________ $s ^ { - 1 }$ .

Calculate the wavelength (in nm)of the blue light emitted by a mercury lamp with a frequency of 6.88 × 10¹⁴ Hz.

Calculate the orbital for the hydrogen atom that contains an electron with an energy of -4.45 × 10^-20 J.

Calculate the mass of a pickup truck travelling at 100.0 km h^-¹ and a de Broglie wavelength of 1.24 × 10^-38 m.

Determine the mass of a ball with a velocity of 35.1 m s^-1 and a wavelength of 8.92 × 10^-34 m.