Which of the following statements is/are incorrect?

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

Ionisation energy of $A^{-}$ is greater than A when A is a halogen atom.

Ionisation energy of $A^{+}$ is greater than that of $A^{2 +}$ when A is the member of alkali metals.

Electron affinity value of $' A^{+}'$ is numerically identical with the ionisation potential of $A^{-}$ [for any atom].

Successive ionisation energy is alway increasing for 1st and 2nd period element.

answer is A, B, D.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

What impact does charge have on ionisation energy?
The outermost electron is attracted to the nuclear charge as it rises, which makes the energy needed to remove an electron rise.
The second ionisation energy of alkali metals is greater than that of alkaline earth metals because they acquire a noble gas configuration after losing one electron.
An atom's electron affinity is quantitatively equivalent to the uninegative ion's ionisation potential.

Watch 3-min video & get full concept clarity