Question

please solve 4th question

Answer 1

Answer:

the answer of the question is 3 rd

Answer 2

Answer:

all have nearly same radii

Explanation:

Co-1.16(atomic radii)

Ni-1.15

Zr-1.45

Hf-1.44

Mo-1.29

W-1.30

U can refer this to solve this ans.

thanks