29 electrons are removed from Zn-atom (Z=30)by certain means. The minimum energy needed to remove the 30th electron, will be

29 electron are remove from Zn atom (Z=30) by certain means . The minimum energy needed to remove the 30th electron , will be :

The minimum energy required to remove an electron is called

When an electron is removed from an atom, its energy

The minimum energy required to eject an electron from an atom is called

An energy of 25.6eV. Is required to remove one of the electrons froma a neutral helium atom. What is the energy (in eV) required to remove both the electrons from a neutral helium atom ?