Co-ordination number Mg2+ , Al3+ in mineral spinel (MgAl2O4) are respectively a) 3 and 4 b) 4 and 3 c) - Chemistry - Solid State

Question

Co-ordination number Mg2+ , Al3+ in mineral
spinel (MgAl​2O4) are respectively
a) 3 and 4
b) 4 and 3
c) 4 and 6
d) 6 and 4
answer is 3 please explain how to solve this

Yasodharan · Accepted Answer

Dear Student,

The mineral spinel MgAl2O4 contains oxide
ions which are arranged in ccp geometry pattern, where
Al3+ occupies octohedral voids while
Mg2+ occupies tetrahedral voids hence the
answer is 3 for the given questionnaire

Regards

Co-ordination number Mg2+ , Al3+ in mineral spinel (MgAl​2O4) are respectively a) 3 and 4 b) 4 and 3 c) 4 and 6 d) 6 and 4 answer is 3 please explain how to solve this

Co-ordination number Mg²⁺ , Al³⁺ in mineral spinel (MgAl₂O₄) are respectively
a) 3 and 4
b) 4 and 3
c) 4 and 6
d) 6 and 4
answer is 3 please explain how to solve this