In a simple cubic lattice of anions, the side length of the unit cell is $3.0\stackrel{o}{A}.$ The diameter of the void in the body centre is

Q. In a simple cubic lattice of anions, the side length of the unit cell is $3.0\stackrel{o}{A}.$ The diameter of the void in the body centre is

Q. In a simple cubic lattice of anions, the side length of the unit cell is $2.88$ $\stackrel{\circ }{A}$. The diameter of the void in the body centre is:

Q. A fluorite ($Ca{F}_2$) structure can be described as a simple cubic lattice of cations with anions in the alternate cubic void. The number of cations present in a unit cell is_________.

Q. The crystalline solids have definite orderly arrangement of their constituent particles in three dimensions known as lattice. The smallest repeating part in the lattice is known as unit cell. The unit cell are described as simple cubic face centred and body centred unit cell.
For the stable ionic crystalline structures, there is definite radius ratio limit for a cation to fit perfectly in the lattice of anions called radius ratio rule. This also defines the coordination number of an ion.
(i) The number of atoms per unit cell in simple cubic $\left(s\right)$, body centred $\left(b\right)$ and face centred $\left(f\right)$ unit cell decreases as:

Q. The number of atoms present in a unit cell of a monoatomic substance (element) of a simple cubic lattice, body-centred cubic and face centred cubic, respectively, are___________.