Carbon dioxide

Atoms

1 carbon
2 oxygen

Bonds

4 carbon-oxygen

Nitrous oxide

Atoms

2 nitrogen
1 oxygen

Bonds

2 nitrogen
2 nitrogen-oxygen

Alternative version
3 nitrogen
1 nitrogen-oxygen

Methane

Atoms

1 carbon
4 hydrogen

Bonds

4 carbon-hydrogen

Tetrafluoromethane (PFC-14)

Atoms

1 carbon
4 fluorine

Bonds

4 carbon-fluorine

Fluoroform (HFC-23)

Atoms

1 carbon
1 hydrogen
3 fluorine

Bonds

1 carbon-hydrogen
3 carbon-fluorine

Trichlorofluoromethane (CFC-11)

Atoms

1 carbon
3 chlorine
1 fluorine

Bonds

3 carbon-chlorine
1 carbon-fluorine

1,1,1,2-Tetrafluoroethane (HFC-134a)

Atoms

2 carbon
2 hydrogen
4 fluorine

Bonds

1 carbon
2 carbon-hydrogen
4 carbon-fluorine

Sulphur hexafluoride

Atoms

1 sulphur
6 fluorine

Bonds

6 sulphur-fluorine