Atoms and ions Flashcards
1
Q
Atomic number
A
number of protons in an atom
2
Q
element
A
substance made up of 1 atom
3
Q
electron shell
A
a layer of electrons that makes up the outside of an atom
4
Q
ion
A
An atom that has a positive or negative charge.
5
Q
neutron
A
particle with 0 charge
6
Q
nucleus
A
contains genetic infomation
7
Q
periodic table
A
an arrangement of elements showing the repeating pattern of their properties
8
Q
Proton
A
particle with +1 charge
9
Q
Valence electron
A
electron furthest out
10
Q
electron
A
particle with -1 charge
