Question

why atom is unstable and molecule is stable​

Answer 1

Explanation:

An atom is stable if the forces among the particles that makeup the nucleus are balanced. An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy. Instability of an atom's nucleus may result from an excess of either neutrons or protons.

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Answer 2

Hi mate,

Hope it helps you out.

Radhe Radhe