C—O

CO

CO2

COCl2

CH3OH

HCOOH

CH3COOH

OCS

C—S

CS

OCS

CS2

CH3S(+)

CH3SH

Cl—Cl

Cl2

Cl—F

ClF

Cl—H

HCl

Cl—O

ClO(+)

ClO2(−)

ClO3(−)

Cl2O

F—F

F2

F—H

HF

F—O

FO(+)

FO2(+)

F2O

F2O2

H—H

H2

Li—Cl

LiCl

Li—F

LiF

Li—O

LiO(−)