The answer is (b). As, vanadium is attached to five fluoride atoms, each flouride containing -1 oxidation state, hence five fluoride contains -5, to neutralize, vanadium should have +5 oxidation state.
Answer:
23dm
Explanation:
so you have to do 10g +13dm so the you have to times it by 3 three times
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10 elements compose the bulk of rock forming minerals