This is the name of group 1A.
Alkali Metals
Mg
Magnesium
This is oxygen's atomic number.
8
g is the unit for this
mass
The highest point on a wave is called this.
Crest
18 or 8A
Sodium
Na
For an atom to be neutral in charge, there needs to be the same amount of these two subatomic particles.
Protons & electrons
mL is the unit for this
volume
violet
This is how many periods are on the periodic table.
7
Ca
calcium
This is where you would find an atom's electrons.
Around the nucleus (energy levels)
Joules and calories are both units for this
energy
These have the longest wavelength: UV, radio waves or x-rays
Radio waves
The group of elements that touch the zig-zag or staircase on the periodic table are classified as this, not Aluminum though!
Metalloids
Cu
Copper
protons & neutrons
density
This is the relationship between frequency and wavelength.
long wavelength, low frequency
short wavelength, high frequency
This is the section of elements on the periodic table where you find the d sublevel (d block)
transition metals
Lead
Carbon-13
7
J/gC is the unit for this.
specific heat capacity
Going from excited state back to ground state/ releasing energy