what is the formula of a compound in which the element Y forms ccp lattice and atoms of X occupy 1/3 of tetrahedral voids??
is it Y12X8
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No of tetrahedral voids in a ccp lattice Y is "twice" as that of the no of atoms of Y.
according to the question: atoms X fills 1/3 of the voids present in Y
and number of Voids present in Y =2Y
since X fills 1/3 of voids the equation can be made as
X=(1/3)×2Y
X=(2/3) Y
Hence the formula of the compound becomes:
X₃Y₂
NOTE:
→For Tetrahedral compounds the number void will be Twice as that of number of atoms in Y
→For Octahedral compounds the number void will be same as that of number of atoms in Y
according to the question: atoms X fills 1/3 of the voids present in Y
and number of Voids present in Y =2Y
since X fills 1/3 of voids the equation can be made as
X=(1/3)×2Y
X=(2/3) Y
Hence the formula of the compound becomes:
X₃Y₂
NOTE:
→For Tetrahedral compounds the number void will be Twice as that of number of atoms in Y
→For Octahedral compounds the number void will be same as that of number of atoms in Y
vishagh:
Hope it helps...!!
i knw its confusing sometimes, i had a hard time understanding it...comment if any doubt persists
moreover its a 1 mark question,you should be able to do this all in mind
Thnx for this
np...anytym...!!!
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