Hydrocarbons

1 C atom
meth-
2 C atoms
eth-
3 C atoms
prop-
4 C atoms
but-
5 C atoms
pent-
6 C atoms
hex-
7 C atoms
hept-
8 C atoms
oct-
9 C atoms
non-
10 C atoms
dec-
-ane

CnH2n+2

single bonds

-ene

CnH2n

one double bond

-yne

CnH2n-2

one triple bond

structural formula of

 

butyne

C4H6

 

H-C=C-C-C-C-C-H3

                                H2H2H2