I would like to say thank you for taking your time to answer my question, in advance.
My quetsion is when you are writing the formula of a poly atomic substance how do you know the charge on one of the symbols.
For example I am looking at gold (III) Nitrate.
The steps in my book say to first get the symbols which are : Au No3
Then it says to add the valences. Based on the periodic table, I see that Au has a valence charge of +1.
The final answer it gives is Au(NO3)3
I am just unsure of how to go from the names and add the charges in.
Please so steps. I am desperate.