Ahydrogen-like ion is an ion containing only one electron. the energy of the electron

Energy required for the ionization of mercury is

Explanation: Energy of the electron in a hydrogen-like ion is given by the equation:

where, Z = atomic number

n = principle quantum number

Ionization energy is the energy required to release the outermost electron from an isolated gaseous atom.

For the ionization of mercury, the equation follows:

Mercury has an atomic number = 80

As, in this element 79 protons are already released, which means that the electronic configuration for is

and the principle quantum number for the last ionization step = 1

Putting the values in energy equation, we get

(Conversion Factor: 1kJ = 1000J)

Silicon

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