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(chatquestion)...(4) 1025 kg/m3 The binding energy of an electron in ground state of He is equal to 24.6 eV. The energy that must be given to the atom so that second electron can be removed is (1) 49.2 eV (2) 54.4 eV (3) 79 eV (4) 84 eV...(Photo from

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