${IP}_{2}$ for an element is invariably higher than ${IP}_{1}$ because

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

Effective nuclear charge is less for cation

Size of the cation is higher than neutral atom

Nuclear charge is high in cation

Change in bond energy

answer is B.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

When an electron is removed from an atom, it becomes a cation, and the size of the cation is smaller than neutral atom. Cation is positively charged and has higher nuclear charge, thereby it is harder to remove a negatively charged electron from a positively charged ion.

When an electron removes from an element X, then it becomes positively charged and its ionization potential is denoted as ${IP}_{1}$ . The removal of second electron from cation is called second ionization potential which is denoted as ${IP}_{2}$ and it is always higher than ${IP}_{1}$ because the electron is removed from cation.

Hence, option(b) is correct.

Watch 3-min video & get full concept clarity