At room temperature, Polonium (atomic we...

At room temperature, Polonium (atomic weight `209 gm mol^(-1)`) crystallises in a primitive cubic unit cell. If `a = 3.36 A^(0)`, calculate the theoritical density of Polonium..

`"6.28 gm cm"^(-3)`

`"9.1 gm cm"^(-3)`

`"3.18 gm cm"^(-3)`

`"6.68 gm cm"^(-3)`

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