GENERAL GEOLOGY

Detailed explanation-1: -The density of CaF2(fluorite structure) is 3.18 g/cm3. The length of the side of the unit cell (in pm ) is: (Given: NA=6×1023, 3√163.5=5.468)

Detailed explanation-2: -The density of CaF2 is 3.180 g cm−3 and edge length, a is 0.55 nm. Then number of particles (Zeff) in a unit cell are nearly : Given : Molar mass of CaF2=78 g mol−1.

Detailed explanation-3: -The density of CaF2 (fluorite structure) is 3.18 gcm−3 . The length of the side of the unit cell is: a)253 pm.

Detailed explanation-4: -2.1 The unit cell of CaF2. The lattice constant is a = 5.451 Å.