Potassium crystallizes in a $bcc$ lattice,hence the coordination number of potassium in potassium metal is

What is the coordination number of the $Ca^{2+}$ ion in the fluorite structure?

The radius of $Na^{+}$ is $95 \, pm$ and the radius of $Cl^{-}$ ion is $181 \, pm$. What is the coordination number of $Na^{+}$?

What is the total number of particles present in a $bcc$ unit cell?

An element crystallizes in a $bcc$ lattice. The number of nearest neighbors of the element is

The radius of the largest sphere which fits properly at the centre of the edge of a body-centered cubic $(BCC)$ unit cell is (Edge length is represented by $a$) (in $a$)