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The Solid State

Question

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Total volume of atoms present in a face-centre cubic unit cell of a metal is (r is atomic radius)

20πr³/3

24πr³/3

12πr³/3

16πr³/3

Solution

D.

16πr³/3

straight V space equals space straight n space straight x space open parentheses 4 over 3 πr cubed close parentheses space equals space 4 space straight x space open parentheses 4 over 3 πr cubed close parentheses space equals space 16 over 3 πr cubed

Some More Questions From The Solid State Chapter

Solid A is a very hard, electrical insulator in solid as well as in molten state and melts at extremely high temperature. What type of solid is it?

Ionic solids conduct electricity in liquid state but not in solid state. Explain.

What type of solids are electrical conductors, malleable and ductile?

Give the significance of a 'lattice point'.

Name the parameters that characterize a unit cell.

Distinguish between Hexagonal and monoclinic unit cells.

Distinguish between Face-centred and end-centred unit cells.

What is the two-dimensional coordination number of a molecule in square close packed layer ?

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