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Nickel (density = 8.9g*cm^(-3), atomic m...

Nickel (density = `8.9g*cm^(-3)`, atomic mass = `58.7g*mol^(-1)`) crystallise in a cubical crystal structure with unit cells having an edge length of 359pm. What kind of unit cell does its crystal associate with?

Text Solution

Verified by Experts

We know, `rho=(ZxxM)/(Nxxa^(3))`
`therefore8.9=(Zxx58.7)/(6.022xx10^(23)xx(359xx10^(-10))^(3))`
or, `Z~~4`
Thus, the crystal is associated with face-centred cubic lattice.
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