$6.63 \times 10^{-34}$ J\cdot s

A particle of light with no mass and energy $E = h\nu$

Question 1

Which of the following best describes electromagnetic radiation?

Accepted Answer

Energy that travels through space as oscillating electric and magnetic fields

Question 2

Given the relationship between frequency ($
u$), wavelength ($\lambda$), and speed of light ($c$), which equation correctly relates these quantities?

Accepted Answer

$c = 
u \lambda$

Question 3

If the wavelength of visible light is $6.4 	imes 10^{-7}$ m, what is its frequency? (Speed of light $c = 3.00 	imes 10^8$ m/s)

Accepted Answer

$4.69 	imes 10^{14}$ Hz

Question 4

Which statement about the correlation between frequency and wavelength is correct?

Accepted Answer

As frequency increases, wavelength decreases

Question 5

A photon has a frequency of $1.43 	imes 10^{15}$ Hz. What is its wavelength? (Speed of light $c = 3.00 	imes 10^8$ m/s)

Accepted Answer

$2.89 	imes 10^{-7}$ m

Question 6

What is a quantum?

Accepted Answer

The smallest unit of electromagnetic energy

Question 7

Which of the following is the value of Planck's constant ($h$)?

Accepted Answer

$6.63 	imes 10^{-34}$ J\cdot s

Question 8

How does quantum theory relate to waves?

Accepted Answer

It describes energy as being quantized in discrete packets called quanta

Question 9

Which experiment demonstrated the photoelectric effect?

Accepted Answer

Shining light on a metal surface and observing electron emission

Question 10

What is a photon?

Accepted Answer

A particle of light with no mass and energy $E = h
u$

Question 11

Which of the following best describes a spectrum?

Accepted Answer

A range of colors produced when light is dispersed by a prism

Question 12

Which is NOT a characteristic of the Bohr Model?

Accepted Answer

Electrons are found in probability clouds

Question 13

What is an orbital?

Accepted Answer

A region in an atom where there is a high probability of finding an electron

Question 14

Which of the following is a quantum number?

Accepted Answer

Principal quantum number ($n$)

Question 15

Which set lists the four quantum numbers in order?

Accepted Answer

Principal ($n$), angular momentum ($l$), magnetic ($m_l$), spin ($m_s$)

Question 16

Which letter designations correspond to the first four types of orbitals?

Accepted Answer

s, p, d, f

Question 17

Which orbital shape is associated with the $p$ orbital?

Accepted Answer

Dumbbell-shaped

Question 18

Which electron configuration represents a neutral oxygen atom?

Accepted Answer

$1s^2 2s^2 2p^4$

Question 19

Which diagram best represents the orbital diagram for carbon ($Z=6$)?

Accepted Answer

Two electrons in $1s$, two in $2s$, and two unpaired in $2p$

Question 20

Which of the following is a real-world application of the photoelectric effect?

Accepted Answer

Solar panels converting sunlight into electricity

Study Guide: Atomic Structure, Electromagnetic Radiation, and Quantum Theory

Study Guide - Practice Questions