横向
1
Element found in all living things
4
Mass per unit volume
6
Group of similar cells
7
Center of an atom or cell
8
Unit of power
10
Hottest planet in solar system
纵向
2
Positive particle in nucleus
3
Smallest unit of an element
5
Second lightest element
9
Particle of light
10
Infectious microscopic agent
11
Disturbance that transfers energy
12
Amplified beam of light
13
Form of thermal energy
14
Precious yellow metallic element