An element E crystallizes in body-centred cubic structure.If the edge centre of the cell is $1.469\times 10^{-10}$m and the density is $19.3gcm^{-3}$.Calculate the atomic mass of this element.Also calculate the radius of an atom of this element.

Question

$\begin{array}{1 1}183.5g,0.634\times 10^{-8}cm\\173.5g,0.534\times 10^{-8}cm\\163.5g,0.434\times 10^{-8}cm\\143.5g,0.334\times 10^{-8}cm\end{array} $