Question

Which electron is difficult to remove from the orbit?

Answer 1

K she'll electron is difficult

Answer 2

As it is a positive ion ,so one electron is alreadyremoved from it.This increases the effective nuclear charge on the outermostelectron.Which results in the increased attraction on it . So it becomes more difficult to remove. Also due to this reason 2nd ionization enthalpy is greater than first I.E.