Question

Which of the following diatomic molecules is joined by a triple covalent bond?

O2
Cl2
N2
He2

Answer 1

Answer : Option C)
`N_(2)`

Explanation : Please refer the attachment for better understanding.

Nitrogen has the atomic number as 7 which has the electronic configuration as (2,5) which means it has two electrons in the first shell and 5 electrons in the second shell. When two atoms of nitrogen combines together these outermost 5 electrons tries to combine in such a way that the molecule attains the octet state by sharing 3 electrons between them which forms a covalent triple bond between the molecule of nitrogen.

Answer 2

N2 has the triple covalent bond.

You can view the diagram for the distribution of electors in the bond.