1-Hydrogen
2-Helium
3-Lithium
4-Bery
5-Boron
6-Carbon
7-Nitrogen
8-Oxygen
9-Fluorine
10-Neon
11-Sodium
12-Magne
13-Aluminum
14-Silicon
15-Phosphor
16-Sulfur
17-Chlorine
18-Argon
2-Helium
3-Lithium
4-Bery
5-Boron
6-Carbon
7-Nitrogen
8-Oxygen
9-Fluorine
10-Neon
11-Sodium
12-Magne
13-Aluminum
14-Silicon
15-Phosphor
16-Sulfur
17-Chlorine
18-Argon
反正我也水部到18级
