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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: dsullivan16 on June 16, 2007, 05:12:38 PM

Title: polyatomic atom formula
Post by: dsullivan16 on June 16, 2007, 05:12:38 PM

 ??? where do the numbers in a polyatomic formula come from?
Ex: Ammonium ion NH 4 +

Title: Re: polyatomic atom formula
Post by: Borek on June 16, 2007, 06:03:02 PM

Do you mean "How do we know them?" Google elemental analysis.