what is probable coordination number of X^+ ion in XY if radii of X^+ & Y^- ions are 200 pm & 300 pm respectively?

As we know that:

Radius Ratio
Coordination no.
r+/r- = 1
12
1 > r+/r- > 0.732
8
0.732 > r+/r- > 0.414
6
0.414 > r+/r- > 0.225
4

As, the value of r+/r- = 2/3 = 0.66667, the probable coordination number = 6

  • 2
What are you looking for?