Question

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Question ❓



The atomic mass of Na is 23u and edge legth of unit cell is 430pm. If the density of sodium is 0.9623g/cm3 what type of unit cell is formed by Na?​

Answer 1

Answer:

Given

the atomic mass of Na = 23u.

length of unit cell = 430pm.

density of sodium = 0.9623g.

it is ccp unit cell ....

Explanation:

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Answer 2

Answer:

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Explanation:

ρ=0.9623 gcm

−3

M

Na

=23 amu

a=4.3

A

˚

Z=?

ρ=

N

A

×a

3

Z×M

A

⟹0.9623=

6.023×10

23

×79.5×10

−24

Z×23

⟹Z=2