CBSE Class 12-science Answered
A cubic solid is made of two elements P and Q. Atoms P are at the corners of the cube and Q at the edge centre and the body centre .What is the formula of the compound?
Asked by Topperlearning User | 17 Jun, 2016, 10:54: AM
Expert Answer
The atom at corner makes 
contribution while atom at body center makes 1 contribution to the unit cell.
Number of atoms of P per unit cell = 8 (at corners) X = 1
= 1Number of atoms of Q per unit cell = 
Therefore formula of the compound is PQ4.
Answered by | 17 Jun, 2016, 12:54: PM
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