Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test General Science Chemistry Periodic Table
What are transition elements?
1
Elements whose two outermost shells are incomplete
2
Elements which possess properties of both, metals and non- metals
3
They have eight electrons in the outermost shell
4
More than one of the above
5
None of the above