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

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

Q: What is a photon?

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

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