The coordination number of cation and anion in fluorite \( \mathrm{CaF}_{2} \) and anti-fluorite...
The coordination number of cation and anion in fluorite \( \mathrm{CaF}_{2} \) and anti-fluorite \( \mathrm{Na}_{2} \mathrm{O} \) are respectively:
(a) \( 8: 4 \) and \( 6: 3 \)
(b) \( 6: 3 \) and \( 4: 4 \)
(c) \( 8: 4 \) and \( 4: 8 \)
(d) \( 4: 8 \) and \( 8: 4 \)
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