横向
1
Smallest unit of an element
3
Biological catalyst
5
Magnetic metallic element
8
Solid with repeating atomic pattern
纵向
2
Second lightest element
4
Form of thermal energy
6
Mass per unit volume
7
Path of a planet around the sun
Smallest unit of an element
Biological catalyst
Magnetic metallic element
Solid with repeating atomic pattern
Second lightest element
Form of thermal energy
Mass per unit volume
Path of a planet around the sun