Question

Which one of the following does not describe Nitrogen?

• A. Nitrogen is a chemical element with atomic number $7$
• B. Nitrogen is a nonmetal with an electronegativity of $3.04$
• C. Nitrogen is very less reactive due to high bond dissociation energy
• D. The triple bonds in nitrogen atom makes it difficult to convert Nitrogen into other compounds

Answer 1

The correct option is C

Nitrogen is very less reactive due to high bond dissociation energy

Explanation for correct option

(C) Nitrogen is very less reactive due to high bond dissociation energy

Nitrogen

• Nitrogen $\left(\mathrm{N}\right)$ is a group $15$ element in the periodic table
• Pnictogens are another name for group $15$ elements.
• The first member of the pnictogen family is nitrogen.
• Nitrogen exist as nitrogen gas $\left({\mathrm{N}}_2\right)$

Reactive of Nitrogen

• Atomic nitrogen, sometimes referred to as active nitrogen, is a triradical with three unpaired electrons and is very reactive.
• Due to its high bond dissociation energy, nitrogen is very reactive.

Explanation for incorrect options

(A) Nitrogen is a chemical element with atomic number $\mathbf{7}$

• Nitrogen is the seventh element on the periodic table.
• It has an atomic number of $7$.

(B) Nitrogen is a nonmetal with an electronegativity of $3.04$

• A member of the $\mathrm{p}$-block is nitrogen.
• Since nonmetals make up the majority of the $\mathrm{p}$-block elements, nitrogen is one of them.
• With an electronegativity of $3.04$, nitrogen is a non-metal.

(D) The triple bonds in nitrogen atom makes it difficult to convert Nitrogen into other compounds

• The electronic configuration of Nitrogen:

$\mathrm{N}=\left[\mathrm{He}\right]2s^{2}2p^3$

• With a total of $7$ electrons, nitrogen only needs $3$ more electrons to achieve the closest noble gas configuration, neon.
• Thus, a triple bond is formed when two nitrogen atoms combine to form nitrogen gas.

Therefore, the correct option is (C) Nitrogen is very less reactive due to high bond dissociation energy.