yess,,,!! bejaye afal tanpe tgk buku...!! =))

hydrogen,

helium,

lithium,

beryllium,

boron,

carbon,

nitrogen,

oxygen,

fluorine,

neon,,

sodium,

magnesium,

aluminium,

silicon,

phosphorus,

sulphur,

chlorine,

argon,

potassium,

calcium...!

p/s : cay0k-cay0k 4 chemistry Es0k.. ^_~