20. The planetary model of an atom fails because an accelerating electron radiates energy ir form of em wave collapsing the atom. the centripetal force cannot be balanced by electrostatic force which spirals the electron orbit. the dominance of the attractive electrostatic force will cause collision of electron and nucleus. The centrifugal force will strip away the electron from the atom.
20. The planetary model of an atom fails because an accelerating electron radiates energy ir form of em wave collapsing the atom. the centripetal force cannot be balanced by electrostatic force which spirals the electron orbit. the dominance of the attractive electrostatic force will cause collision of electron and nucleus. The centrifugal force will strip away the electron from the atom.
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