The pair that has similar atomic radii is :
|
a) |
Mo and W |
b) |
Ti and Hf |
|
c) |
Sc and Ni |
d) |
Mn and Re |
The pair that has similar atomic radii is :
|
a) |
Mo and W |
b) |
Ti and Hf |
|
c) |
Sc and Ni |
d) |
Mn and Re |
Mo and W belong to group-6 and period 5 (4d series) and 6 (5d series) respectively.
Due to lanthanoid contraction, radius of Mo and W are almost same.