The correct order of electron affinity of the elements of oxygen family in the periodic table is

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

O > S > Se

S > O > Se

S > Se > O

Se > O > S

answer is C.

(Unlock A.I Detailed Solution for FREE)

Detailed Solution

Sulphur has optimum size of all the 16th group elements and has the highest electron gain enthalpy. Oxygen due to its small size and presence of lone pairs has lesser affinity towards electrons. Thus its electron gain enthalpy is abnornally low ,in fact least in the group. Thus ΔHeg of S>Se>Te>Po>O.

Watch 3-min video & get full concept clarity

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Online Course for IIT JEE

Best Online Course for NEET

Best Online Course for CBSE

Get Expert Academic Guidance – Connect with a Counselor Today!

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Online Course for IIT JEE

Best Online Course for NEET

Best Online Course for CBSE