If the total energy of an electron in the 1st shell of H atom = 0.0 eV then its potential energy in the 1st
excited state would be
(a) +6.8 eV
(b) +20.4 eV
(c) -6.8 eV
(d) +3.4 eV
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Answer:
In 1st excited state,n=2. E=-13.6×Z^2÷n^2. E=-13.6×1^2÷2^2 (Z of H=1). E=-3.4ev. Ep=-2Ek. Ep=-2(-3.4)=+6.8ev
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