Checkout JEE MAINS 2022 Question Paper Analysis : Checkout JEE MAINS 2022 Question Paper Analysis :

The first ionization energy (in kJ/mol) of Na, Mg, Al and Si, respectively

a. 496, 737, 577, 786

b. 496, 577, 737, 786

c. 496, 577, 786, 737

d. 786, 737, 577, 496

Answer:

The expected order is Na < Mg < Al < Si.

But the actual/experimental order turns out to be Na < Al < Mg < Si, because of the fully filled s- sub shell of magnesium and the s2p1 configuration of Al which makes it relatively easy for Al to lose its outermost electron.

Was this answer helpful?

 
   

0.5 (1)

(0)
(1)

Choose An Option That Best Describes Your Problem

Thank you. Your Feedback will Help us Serve you better.

Leave a Comment

Your Mobile number and Email id will not be published.

*

*

Ask
Question