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A metal has face centred cubic lattice. The edge length of the unit cell is 404 pm. The density of…
A metal has face centred cubic lattice. The edge length of the unit cell is 404 pm. The density of the metal is 2.72 g/cm3. (NA = 6.023 x 1023 mol-1)
(i)
The molar mass of the metal is:
- (a)20 g mol-1
- (b)27 g mol-1
- (c)30 g mol-1
- (d)40 g mol-1
(ii)
The radius of the metal atom in centimetre (cm) is:
- (a)103.29 x 10-10 cm
- (b)125.63 x 10-10 cm
- (c)142.81 x 10-10 cm
- (d)175.76 x 10-10 cm
Answer
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From ISC 2022 Specimen Chemistry Paper 1, question 43.