When an element shares electrons with other atoms of the same or different elements to acquire stable electronic configuration, it is called [[1]].

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Detailed Solution

Concept- Covalency is the process by which an element shares electrons with other atoms of the same or different elements to attain a stable electronic state. An atom's covalency is equal to one if it shares one electron. It has a covalency of two if it can share two electrons.
Fluorine has 7 valence electrons, making it a covalent element. Its covalency is 1, as it can share an electron with an atom of F to create F2 or with H to complete its octet to create HF.
Nitrogen has 5 valence electrons, making it a covalent element. Its octet requires 3 electrons to be complete. In order to gain three valence electrons, it can cooperate with the nitrogen atom.
Hence, when an element shares electrons with other atoms of the same or different elements to acquire stable electronic configuration, it is called covalency.

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