## Chemistry: The Central Science (13th Edition)

The atomic radius a tungsten atom in this environment is $1.37$ angstrom.
This exercise mentions the distance between W atoms in tungsten metal is $2.74$ angstrom. Therefore, we can deduce the atomic radius of tungsten as half the distance between W atoms in tungsten metal, according to definition. So, the atomic radius a tungsten atom in this environment is $\frac{2.74}{2}=1.37$ (angstrom).