wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Which electronic configuration of an element has abnormally high difference between second and third ionisation energy?

A
1s2,2s2,2p6,3s1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
1s2,2s2,2p6,3s2,3p1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
1s2,2s2,2p6
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
1s2,2s2,2p6,3s2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D 1s2,2s2,2p6,3s2
(a) 1s22s22p63s1+E11s22s22p6 +1E2−−1s22s22p5+1E3−−1s22s22p4


(b) 1s22s22p63s23p1+E11s22s22p63s2+1E2−−1s22s22p63s1+1E3−−1s22s22p6


(c) 1s22s22p6+E11s22s22p5+1E2−−1s22s22p4 1E31s22s22p3


(d) 1s22s22p63s2+E11s22s22p63s1+1E2−−1s22s22p6+1E3−−1s22s22p5


In option D, after removal of second valence electron from 3s orbital, the ion formed achieves noble gas configuration. Therefore, to remove the third electron from 2p orbital, a lot of energy is required. Thus, there is an abnormally high difference between second and third ionization enthalpies.


flag
Suggest Corrections
thumbs-up
2
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Ionization Enthalpy
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon