Q.

Which represents the correct order of first ionisation potential of third period elements?

see full answer

Want to Fund your own JEE / NEET / Foundation preparation ??

Take the SCORE scholarship exam from home and compete for scholarships worth ₹1 crore!*
An Intiative by Sri Chaitanya

a

Na > Mg>Al > Si

b

Na < Mg < At < Si

c

Na < Si

d

Na < Al < Mg < Si

answer is D.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

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

Take Free Test

Detailed Solution

Generally, ionisation potential increases, as we move from left to right in a period. However the ionisation Potential of II group elements is higher than that of the III A group elements. This is because of the fully-filled s-orbitals in II group elements.Hence, the correct order of ionisation potential is
Watch 3-min video & get full concept clarity
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

+91
Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Books for IIT JEE
Best Books for NEET
whats app icon