What characteristic of an atom influences the behavior of the valence electron the most in an atom? (Hint: Consider the charge of the particles)?

The higher its electronegativity, the more an element attracts electrons.

Explanation:

Electronegativity is a property that describes the tendency of an atom to attract electrons (or electron density) toward itself. An atom's electronegativity is affected by both its atomic number and the size of the atom.

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