|
|
|
3
|
Subatomic particle in the nucleus that has no charge.
|
|
4
|
Combinations of substances which result in one or more new substances.
|
|
5
|
Electrons occupy a particular _____ _____ around the nucleus.
|
|
6
|
Some elements or isotopes of elements break apart causing ardioactivity.
|
|
7
|
Equals the number of protons.
|
|
8
|
The sharing of electrons between two non-metal elements
|
|
9
|
Equals the number of protons and neutrons.
|
|
11
|
Scientists use a symbol of one or two letters to identify an element.
|
|
12
|
Atoms of the same element with different numbers of neutrons
|
|
|
