Po Chun Han

[Po Chun Han @a242520002000]

@fruhling_e @g_a_craig @shu_gifu @WZaoming @hiroo__2525 @Annaunce @meijishoin It seems a nice book to treat my insomnia.😆

[Po Chun Han @a242520002000]

@g_a_craig @oharalab There are two 4p orbitals labeled in the right side of the periodic table?