Question

Which of the following transition involves
maximum amount of energy?​

Answer 1

Answer:

The transition M2+(g)→M3+(g) involves maximum amount of energy. It is very difficult to remove an electron from dispositive cation as the effective nuclear charge per electron is maximum

Explanation:

I hope this is help for you. . .

Answer 2

It is the amount of energy required to remove an electron from an isolated gaseous atom of an element to form positive gaseous ion in its ground state.

It is more difficult to remove an electron from positive ion than from neutral or negative atom.

Hence, removal of electron fromM

+2

is more difficult and involves maximum amount of energy than their given transitions.