Welcome again on fullonstudy. Today I’m going to discuss Excitation & Ionisation of atoms & molecules.
So let us start..
When energy is supplied to atoms & molecules, they absorb energy. It is noticed that energy absorbed as a definite value in case of particular type of atoms or molecules.
If we excite electron from first state to second state then,
If we excite from first to third state then,
Hence, the successive excitation potentials of Hydrogen are 10.21, 12.10,…..eV respectively.
“The amount of energy required to detach the electron completely from atom, i.e. to raise the electron from n=1 to n=∞ is called ionisation energy “
This is the value of ionisation energy.