|MadSci Network: Chemistry|
In class we are learning about oxidation numbers and everyone is writing formulas for certain elements. A simple one I understand is H20, however I don't understand anything beyond that. What causes an element to have a subscript of 2 or 3, and how do you know what to put above the element symbol such as 3+. I know that has to do with electrons, but it still doesn't make sense!
Re: How do you write formulas like Na2Cl for oxidation # and elements
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