Across
1
Element found in all living things
3
Amplified beam of light
6
Smallest unit of an element
9
Reddish electrical conductor
11
Unit of force
Down
1
Solid with repeating atomic pattern
2
Force that attracts objects together
4
Mass per unit volume
5
Second lightest element
7
Chemical element in table salt
8
Natural satellite of Earth
10
Absolute temperature scale unit