If the 1st ionization energy of H atom is 13.6 eV, then the 2nd ionization energy of He atom is

For Competitive Exams

If the 1^st ionization energy of H atom is 13.6 eV, then the 2^nd ionization energy of He atom is

27.2 eV

40.8 eV

54.4 eV

108.8 eV

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The atomic number of an element ‘M’ is 26. How many electrons are present in the M-shell of the element in its M³⁺ state?

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