Suppose the mass of a single Ag-atom is m. Ag metal crystallises in fcc lattice with unit cell of length a. The density of Ag metal in terms of a and 'm' is
Crystalline solids have
short range order
long range order
anisotropic distribution
All of these.
A metal has a fcc lattice. The edge length of the unit cell is 404 pm. The density of the metal is 2.72 g cm3. The molar mass of the metal is (NA vogadro's constant = 6.02x 1023 mol-1).
40 g mol-1
30 g mol-1
27g mol-1
20 g mol-1
A compound is formed by cation C and anion A. The anions form hexagonal close packed (hcp) lattice and the cations occupy 75% of octahedral voids. The formula of the compound is :
C3A2
C3A4
C4A3
C2A3