1.

Energy required to pull out an electron from 1st orbit of hydrogen atom to infinity is 100 units. Theamount of energy needed to pull out the electron from 2nd orbit to infinity is(1) 50 units(2) 100 units(3) 25 units(4) Zero

Answer» <p>25 unitsbecause the energy in an orbit is inversely proportional to n^2.</p>


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