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

51.8

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79

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38.2

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49.2

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Solution

The correct option is D $49.2$ eV
In helium atom, both the electrons lie in ground state.
Energy required to remove an electron from ground state of helium atom is $24.6$ eV.
$∴$ Energy required to remove two electrons $E^{'} = 2 E$
$⟹$ $E^{'} = 2 (24.6) = 49.6$ eV

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

The correct option is D 49.2eVIn helium atom, both the electrons lie in ground state.Energy required to remove an electron from ground state of helium atom is 24.6 eV.∴ Energy required to remove two electrons E′=2E⟹ E′=2(24.6)=49.6 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

The correct option is D $49.2$ eV
In helium atom, both the electrons lie in ground state.
Energy required to remove an electron from ground state of helium atom is $24.6$ eV.
$∴$ Energy required to remove two electrons $E^{'} = 2 E$
$⟹$ $E^{'} = 2 (24.6) = 49.6$ eV