What is the total number of electrons shared in the bonds between the two carbon atoms in a molecule of #H-C=C-H#?

1 Answer
Nov 15, 2016

Answer:

In acetylene, #HC-=CH#, or ethylene, #H_2C=CH_2#?

Explanation:

Each carbon atom has 4 valence electrons. In acetylene, there are 3 carbon-carbon bonds, i.e. 6 electrons shared between the carbons. And in ethylene there are 4 electrons shared between the carbon atoms; the remaining 2 electrons constitute half of the #C-H# bonds.