横向
1
Magnetic metallic element
4
Precious yellow metallic element
5
Basic unit of life
6
Natural satellite of Earth
9
Compound containing oxygen
11
Mass per unit volume
12
Smallest unit of an element
纵向
2
Second lightest element
3
Gas essential for breathing
7
Unit of electric potential
8
Push or pull on an object
10
Solid with repeating atomic pattern