横向
1
Molten rock beneath Earth surface
3
Reddish electrical conductor
6
Gas essential for breathing
7
Particle of light
8
Amplified beam of light
10
Push or pull on an object
11
Solid with repeating atomic pattern
纵向
2
Second lightest element
4
Smallest unit of an element
5
Precious yellow metallic element
7
Positive particle in nucleus
9
Biological catalyst
12
Measure of matter in an object