Answer:
(i)
In this structure, each ion is
surrounded by
ions
which are disposed towards the corners of a cube.
When
the unit cell is extended it can be seen that each
ion is
surrounded by
ions.
Thus, the co-ordination number of
and
is 8:
8. 1
(ii)
Radius ratio
The
radius of
is 0.93 hence
its crystal arrangement will be a simple cubic
arrangement.
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