1.
an atom that has a neutral charge
2.
an atom that has a positive charge
3.
an atom that has a negative charge
4.
is something that has a # of protons and electrons
5.
a symbol that identifies an element
6.
electrons on the outer-most shell
7.
most used model for displaying atoms
8.
easy way to display valence electrons
9.
number of protons and neutrons
10.
is the transfer of valence electrons between two atoms, generating a positive and negative charge, and forming a bond.
11.
are where two elements share an electron and form a bond
12.
are two elements with the same # of protons, but different # of neutrons
13.
how much space the atom takes up
14.
one part of a whole(one atom)
15.
something that is made up of two or more elements
