The number of electrons needed to fill any valence shell above 2s
8
5
4
10
The number of protons in an atom
Atomic number
Mass number
Atomic particle
Half life
Valence anion covalent( Valence, anion, covalent ) is the total number of bonds an atom can form
A halflife refers to
How long a werewolf lives
The time it takes for one half of a radioactive isotope to decay
Atom with a negative charge