A cubic solid is formed by p and q atoms. p are present at corners, q are present at edge centre and body centre. find the formula of the compound
poojavyass:
Q is present at edge centre or body centre?
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Number of atoms in the corners
=
× 
= 
As the atom is present in the body, the number of atom is 1
∴ the formula is PQ
=
As the atom is present in the body, the number of atom is 1
∴ the formula is PQ
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