Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test General Science Chemistry Periodic Table
Which of the following is the correct increasing order of ionization energy ?
1
He < Ne < Ar < Kr
2
Ar < Kr < Ne < He
3
Kr < Ar < Ne < He
4
More than one of the above
5
None of the above