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The ionisation energy of an electron in the ground state of helium atom is 24.6 eV.

The ionisation energy of an electron in the ground state of helium atom is 24.6 eV. The energy required to remove both the electron is

Options

(a) 51.8 eV
(b) 79 eV
(c) 38.2 eV
(d) 49.2 eV

Correct Answer:

79 eV

Explanation:

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