Question

which order about ionisation enthalpy is correct ?​

Answer 1

Answer:

All are isoelectronic species but as number of protons i.e. atomic number increases, the attraction between electron ( to be removed ) and nucleus increases and thus ionisation enthalpies increase. Order of A:Te2-(52)<l-(53)<Cs+(55)<Ba2+(56) .

Explanation:

Answer 2

Answer: All are isoelectronic species but as number of protons i.e. atomic number increases, the attraction between electron ( to be removed ) and nucleus increases and thus ionisation enthalpies increase. Order of A:Te2-(52)<l-(53)<Cs+(55)<Ba2+(56) .