横向
1
Smallest unit of an element
3
Solid with repeating atomic pattern
6
Naturally occurring inorganic solid
8
Nerve cell in the brain
10
Center of an atom or cell
纵向
2
Our home planet
3
Reddish electrical conductor
4
Gas form of a liquid
5
Second lightest element
6
Tissue that contracts for movement
7
Positive particle in nucleus
9
Unit of force