F2 contain a triple bond?
No, like the other halogens it only contains a single bond.
Alkynes: they contain SP hybridized Carbon atoms. The 2 SP hybridized orbitals of two adjacent carbons overlap, leaving two more unhybridized p orbitals, which overlap. This forms three pairs of shared electrons over two carbon atoms, or simply, a triple bond. Alkynes contain triple bonds. Best of luck
A single pair is a single bond two pairs is a double bond three pairs is a triple bond all bonds contain one sigma bond. A double bond contains one sigma bond and one pi bond. A triple bond contains one sigma bond and two pi bonds. A covalent bond in which one atom shares both electrons is called coordinate covalent or dative