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The Solid State

Question
CBSEENCH12005499

An element occurs in BCC structure with cell edge of 300 pm. The density of the element is 5.2 g cm–3. How many atoms of the element does 200 g of the element contain?

Solution
solution:
we have given that
z = 2 
a = 300 pm
d = 5.2 gm cm
–3
by using the given formula we obtaine mass of element i.e.