What are the coordination numbers of li + and s2 - in the lithium sulfide crystal shown? enter the values in order of li + and s2-, respectively?

Question

Chemistry

Lil Mama

13 March, 17:19

What are the coordination numbers of li + and s2 - in the lithium sulfide crystal shown? enter the values in order of li + and s2-, respectively?

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Antonio Holmes · Answer 1

As there must be twice as many lithium ions as sulphide ions, the 'numbers'

must be different.

It's 4:8. i. e. 4 sulphides around each lithium; and 8 lithiums around each

sulphur.

It's an antifluorite structure.