作者:Woon Kiat 16 年以前
403
更多类似内容
由youssef murad
由Szeru Tan
由Alan Crooks
由Siti Khadijah
Containing different kind of atoms
Molecules of compounds
Cl2
CO2
Containing same kind of atoms
Molecules of elements
Examples:
Oxygen gas
Chlorine gas
+1
0
1
-1
1/2000