1.
Atoms in a vertical column with similar chemical properties
2.
Horizontal rows that share the same number of orbitals
3.
positive charge, 1 amu, inside nucleus, identity of atom
4.
Neutral charge, 1 amu, inside the nucleus
5.
negative charge, 0 amu, outside nucleus - electron cloud
6.
electrons located on outer most shell, determine reactivity
7.
property can be observed or measured without changing
8.
Property a characteristic of a substance that is observed during a reaction
9.
arrangement of elements based on atomic #, physical and chemical properties
10.
orbitals surrounding nucleus determined by period
13.
able to be bent into wires
14.
allows electricity to flow through it