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A metal forms cubic crystals. The mass of one unit cell of it is M/NA gram, where M is the atomic mass of the metal and NA is the Avogadro number. What is the type of cubic unit cell possessed by the metal?

Manu Tyagi , 6 Years ago
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anser 2 Answers
Shivangi Khatter

Last Activity: 5 Years ago

dear student
the type of the cubic cell is simple cubic unit cell becuse effective number of unit cell will be 1 in this case

Jemimah Joseph

Last Activity: 4 Years ago

Atomic mass (M) of an element in grams is the mass of NA(Avogadro no.) atoms of that element.So mass of one atom is equal to M/NA grams. 
Since the given mass of the unit cell is also equal to  M/NA grams, it must have exactly one atom in it.
So the type of unit cell is a simple cubic unit cell

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