Chú thích: atom(s) là nguyên tử, ký hiệu theo IUPAC
\(a.N_{Ag}=\dfrac{1}{8}\cdot8+\dfrac{1}{2}\cdot6=4\left(atom\left(s\right)\right)\\ b.D=\dfrac{108g\cdot mol^{-1}\cdot4atom\left(s\right)}{\left(144pm\cdot10^{-10}cm\cdot pm^{-1}\cdot\dfrac{4}{\sqrt{2}}\right)^3\cdot6,022\cdot10^{23}atom\left(s\right)\cdot mol^{-1}}=10,62g\cdot cm^{-3}\)
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