Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test General Science Chemistry Classification of Elements and Periodicity in Properties
Arrange the following elements in the order of their increasing nonmetallic character
Li, O, C, Be, F
1
F < C< O < Be < Li
2
Li < Be < C < O < F
3
F < O < C < Be < Li
4
More than one of the above
5
None of the above