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Timeline for Calculating valence of oxides

Current License: CC BY-SA 3.0

6 events
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Jun 17, 2015 at 23:31 comment added Saturn @Mithoron ok so, it CAN have valence 6, but it normally has 2? How do you know which one is the most common / the lne I should use?
Jun 17, 2015 at 23:07 comment added Mithoron @voldemort As you wrote iron can have +6 oxidation number and than also valence = 6 I'm afraid that you're trying to learn what they are on one of more difficult cases.
Jun 17, 2015 at 22:56 comment added Saturn @Mithoron Then why doesn't Iron have a valency of $6$? Since its outer shell has only $2$ electrons, it could gain $6$ to reach $8$?
Jun 17, 2015 at 22:52 comment added Mithoron @voldemort one can imagine that oxygen gets 2 electr. to have 8 total - octet
Jun 17, 2015 at 18:31 comment added Saturn Why does Oxygen have valency $2$? It has $6$ electrons in its outer shell I think? Or am I calculating this all wrong?
Jun 17, 2015 at 9:37 history answered DarrenRhodes CC BY-SA 3.0