Question

The energy of an electron in the ground state is​

Answer 1

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.