1.4 Electromagnetic Waves

True or False

For electromagnetic waves, energy and wavelength are inversely proportional.

True

True or False

For electromagnetic waves, wavelength and frequency are directly proportional.

False

True or False

For electromagnetic waves, frequency and energy are directly proportional.

true

What is the most reactive family of metals?

group 1- alkali metals

What is the most reactive family of nonmetals?

group 17- Halogens

Which section of the periodic table has elements that tend to gain electron?

Nonmetals

What do elements in the same period on the periodic table have in common?

Valence electrons are on the same energy level

What do elements in the same group on the periodic table have in common?

the same number of valence electrons

The Speed of light equation relates the frequency and wavelength of an electromagnetic wave with the following equation:

c= λ · f

How would this equation be rearranged to calculate the frequency of an electromagnetic wave if you know the wavelengths?

f= c/λ

Planck’s equation relates the frequency and energy of an electromagnetic wave with the following equation:

E= f · h

f= E/h

identify the characteristics of nonmetals

brittle, dull, poor conductors of heat

Identify all diatomic particles

H, Br, Cl, N, F, I, O

Identify the characteristics of metals

most are solid at room temperature, lustrous, ductile