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The energy of an electron in the ground state is |
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Answer» It is GIVEN that the energy of an electron in the ground state of the hydrogen atom is –2.18 × 10–18 J. Therefore, the energy REQUIRED to remove that electron from the ground state of hydrogen atom is 2.18 × 10–18 J.Explanation:The ionization enthalpy is the AMOUNT of energy required to remove an electron from ground state to infinity. The energy of electron in the ground state is −2.18×10−18 J. The energy of electron at infinity is zero. The energy required to remove electron is 0−(−21.8×10−18 J)=2.18×10−18 J. To remove 1 mole of ELECTRONS, the amount of energy required is 2.18×10−18×6.023×1023 =13.130×105 J/mol. This is the ionization enthalpy of hydrogen. |
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