The increasing order of electron gain enthalpy of the following elements is
I) $1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{5}$ II) $1 s^{2}, 2 s^{2} 2 p^{3}$
iii) $1 s^{2}, 2 s^{2} 2 p^{5}$ IV) $1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{1}$

see full answer

High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET

🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.

An Intiative by Sri Chaitanya

II < IV < III < I

IV < III < II < I

I < III < II < IV

I < II < III < IV

answer is A.

(Unlock A.I Detailed Solution for FREE)

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

$1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{5} - Cl, 1 s^{2}, 2 s^{2} 2 p^{3} - N$

$1 s^{2}, 2 s^{2} 2 p^{5} - F, 1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{1} - Na$

$∴$ the correct order is N < Na < F < Cl

Watch 3-min video & get full concept clarity

No courses found

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test