chemistry Flashcards
learn atoms and ions
1
Q
how do you find protons?
A
atomic #
2
Q
atomic #- ?=electrons
A
ion charge
3
Q
how do you get neutrons?
A
avg mass- protons
4
Q
what is the outer shell called?
A
valence shell
5
Q
valence number= ?
A
of electrons in outer shell
6
Q
positive ions= ?
A
remove electrons
7
Q
negative ions= ?
A
add electrons
