Nickel has a face-centered cubic structure and has a density of 8.90 g/cm3. what is its atomic radius?

Atomic radius,

Explanation:

It is given that,

Density of nickel, d = 8.9 g/cm³

The density of a unit cell is given by :

Where

Z = no of atoms per unit cell

A = molar mass of an element in g/mol

N₀ = Avogadro's number

a = edge length

The edge length of FCC crystal is, .............(1)

r = atomic radius

Nickel has a FCC structure and for FCC, Z = 4

For nickel A = 58.69 g/mol

Atomic radius is,

Hence, this is the required solution.

hujjujddf

d. air pressure decreases as altitude increases.