Across
1
Reddish electrical conductor
2
Preserved remains of ancient life
3
Unit of electric potential
4
Unit of energy
6
Amplified beam of light
8
Smallest unit of an element
10
Substance with pH below 7
11
Particle of light
Down
1
Solid with repeating atomic pattern
3
Gas form of a liquid
5
Chemical element in table salt
7
Unit of force
9
Precious yellow metallic element