Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test General Science Chemistry Periodic Table
The order of first ionization potential in Na, Mg, Al and Si is-
1
Na > Mg > AI < Si
2
Na < Mg > AI < Si
3
Na > Mg > AI > Si
4
More than one of the above
5
None of the above