Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 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