For b: One of the most important enzymes in the world—nitrogenase, the plant protein that catalyzes nitrogen fixation— contains active clusters of iron, sulfur, and molybdenum atoms.
To calculate the edge length, we use the relation between the radius and edge length for BCC lattice:
R= √3a /4
where, R = radius of the lattice = ?
a = edge length = 314 pm
Putting values in above equation, we get:
=√3x314 /4 =135.9pm
Hence, the radius of the molybdenum atom is 135.9 pm
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