Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Classification of Elements and Periodicity in Properties
In terms of ionisation enthalpy, H resembles which of the group’s elements more?
1
17th group
2
1st group
3
Both 1st and 17th group
4
More than one of the above
5
None of the above