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68. The required energy for removal of electron from n excited and isolated hydrogen atom is(E1= -13.6eV) (a) =13.6 eV (b) >13.6 eV (c) 3.4 eV (d) |
| Answer» 68. The required energy for removal of electron from n excited and isolated hydrogen atom is(E1= -13.6eV) (a) =13.6 eV (b) >13.6 eV (c) <13.6 and >3.4 eV (d) <=3.4 eV | |