Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test General Science Chemistry Periodic Table
The most electropositive element possesses the electronic configuration:-
1
[He]2S1
2
[Ne]3S2
3
[Xe]6S1
4
More than one of the above
5
None of the above