Question

How can u explain VALENCY if it is asked by an old man who heard u saying that word,i.e.,simple words?

Answer 1

Valency is the arrangement and number of electrons in the outermost orbitals of atoms. Due to the nature of atomic orbitals (symmetry, molecular orbital overlap, and electronegativity), these outside electrons, or valence electrons, are the ones that are most readily able to form stable bonds.

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