1
Protons, neutrons, and electrons are called this.
2
The weighted average of all an element’s isotopes.
3
Protons + neutrons
4
In a neutral atom the charge on these particles must balance out the charges of the protons.r
5
The group of elements that tend to gain electrons.
6
When electrons are lost, a ________ charge is formed.
7
The atomic number represents the number of these
8
Changing the number of neutrons create these different “versions” of an element.
9
In order for a neutral atom to obtain a negative charge, electrons must be __________.
10
This group of elements tend to lose electrons.
11
When the number of protons does not equal the number of electrons.
