Answer :
During the formation of a nitrogen molecule, each nitrogen atoms have five valence electrons provided with three electrons to form three electron pairs for sharing. Therefore, a triple bond is formed between the two nitrogen atoms.
Valence electrons are defined as the electrons present in the outermost shell, or energy level, of an atom. For example, element oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell. The electronic configuration of oxygen's valence electrons is 2s²2p⁴.
Hence, nitrogen atoms have five valence electrons provided with three electrons to form three electron pairs for sharing.
Learn more about electron pairs from the link given below.
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