Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test General Science Chemistry Periodic Table
The correct order of atomic radii in group 13 elements is
1
B < Al < In < Ga < Tl
2
B < Al < Ga < In < Tl
3
B < Ga < Al < In < Tl
4
More than one of the above
5
None of the above