The coordination number for the Al3+ ion is typically between four and six. Use the anion coordination number to determine the Al3 + coordination number in the following compounds:
(a) AlF3 where the fluoride ions are two coordinate,(b) Al2O3 where the oxygen ions are six coordinate,
(c)AlN where the nitride ions are four coordinate.
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Ответ:
2. 0.8/0.4 = 2 Hz