The energy required to remove the electron from a singly ionized Helium atom is 2.2 times the energy required to remove an electron from helium atom. The total energy required to ionize the Helium ato

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The energy required to remove the electron from a singly ionized Helium atom is 2.2 times the energy required to remove an electron from helium atom. The total energy required to ionize the Helium atom completely is close to

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The energy is required to remove e − from singly ionized helium atom = 54.4 e V . The energy required to remove e − from a helium atom = x e V , given 54.4 e V = 2.2 x ⇒ x = 24.73 e V . The energy required to ionize helium atom = 79.13 e V ≈ 79 e V .

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