CHAPTER 3

Question 1

What is the equation for speed of light?

Answer 1

c = λv
Speed of light = wavelength * frequency

Question 2

What is the equation for Energy?

Answer 2

E = hλ
Energy = Planck’s Constant * wavelength

Question 3

Where is the highest energy on the electromagnetic spectrum?

Answer 3

Gamma Rays

Question 4

Where is the lowest energy on the electromagnetic spectrum?

Answer 4

Radio

Question 5

Where is the smallest wavelength on the electromagnetic spectrum?

Answer 5

Gamma Rays

Question 6

Where is the largest wavelength on the electromagnetic spectrum?

Answer 6

Radio

Question 7

What is the order on the electromagnetic spectrum left to right?

Answer 7

Gamma Rays -> X-rays -> UV -> Visible light (violet-red) -> Infared -> Microwave -> Radio

Question 8

What is the equation for formal charge?

Answer 8

Formal charge =
# of valence electrons - number of unbonded electrons - bonded pairs

Question 9

If the molecule is not neutral, positive charge has more or less valence electrons?

Answer 9

Less

Question 10

If the molecule is not neutral, negative charge has more or less valence electrons?

Answer 10

More

Question 11

What is the equation for average bond order?

Answer 11

Average bond order =
# of bonds to center atom/ # of atoms bonded to center atom
Higher the bond order the higher the stability