Question

The number of electrons shared by each outermost shell of molecular nitrogen is
A. 2
B. 3
C. 4
D. 5

Answer 1

Hint: Nitrogen exists in all proteins and has an important role in industries.
It builds strong bonds due to its capability to build a triple bond with itself, and other elements.

Complete step by step solution:Nitrogen is present at the top of group 15 on the periodic table.
It possesses 5 valence electrons.
It has no odor, color, or taste and is a chemically inert gas at room temperature.
It was discovered in the year 1772 by Daniel Rutherford.
It is one of the most abundant elements and is more abundant than elements like carbon or silicon.
Molecular nitrogen or N2 is non-reactive at normal temperature and pressure and like nitrogen is colorless and odorless.
We know that in molecules covalent bonds are normally formed.
N has 5 electrons in its valence shell and it will form a bond such that it can attain three more electrons and complete its octet.
So, it forms a bond with another N atom such that this atom shares three of its electrons.
So, a triple bond is formed and the octet rule is satisfied as well.
So, the number of electrons shared by each outermost shell of molecular nitrogen is 3.

So, option B is correct.

Note: The dinitrogen molecule is a very stable compound as nitrogen builds a triple bond with itself. This triple bond is hard to break. For this reason, this is inert.
Nitrogen furnishes a blanket for the atmosphere for the manufacture of chemicals and electronic compartments.