Chapter 7

Question 1

Wave Amplitude

Answer 1

The height of the wave

Question 2

Wavelength

Answer 2

The distance of a full wave cycle

Question 3

Frequency

Answer 3

Number of waves that pass a point per second S⁻¹

Question 4

Describe electromagnetic Radiation Spectrum

Answer 4

Radio - Microwave - IR - Visible - UV - X-Ray -Gamma
Low NRG High NRG
Low Frequency High Frequency
ROYGBIV

Question 5

Relationship between wavelength and frequency
(Formula for speed of light)

Answer 5

C = λ × f

C = 3.00 × 10⁸
λ = meters (Megameter = 10⁶)
f = Hz

Question 6

Constructive Interference

Destructive Interference

Answer 6

Constructive Interference: Waves combine and grow larger

Destructive Interference: Waves cancel each other out

Question 7

Einstein’s Explanation

Formula for Energy

Answer 7

Light is delivered in photons (Packets of Energy)

E = h×f = (h × c)/ λ

E=NRG
h = Planck’s constant = 6.626 × 10⁻³⁴
f = frequency (Hz)

Question 8

Define Quantum Numbers

Answer 8

n: Describes which Energy level electrons are in
n >/= 1

l: The Angular Momentum Quantum Number describes shape of atomic orbital / which row of the periodic table the electrons are in
l </= n-1
0 = s, 1 = p, 2 = d, 3 = f

Ml = Magnetic Quantum Number describes the number of orbitals and their orientation within a subshell.
-l < Ml < +l

Ms: Electron Spin Number designates whether an electron is spinning up or down

Ms = +/1- 1/2

Question 9

Chemistry in your day

Emission Spectra

Absorption Spectra

Answer 9

Each element has a unique emission spectrum

Emission Spectra: Spectra of color that is released during a flame test

Absorption Spectra: Dark lines on a color spectrum that show what colors were absorbed when white light passes through a sample