Question
Question: Which of the following is correct about the radius of species ?...
Which of the following is correct about the radius of species ?
A
Al 
Ga
B
ZrHf
C
Fe3+< Fe2+< Fe+
D
Above all
Answer
Above all
Explanation
Solution
Size of Al Ga due to poor shielding effect of d-orbitals
Zr Hf ® Due to Lanthanide contraction
Fe3+ < Fe2+ < Fe+ ® +ve O.N ¯ size