And here, unlike here, we have the phosphate groups. And for ATP, we have one, two, three of these phosphate groups. And so we have a negative charge here, a negative charge delocalized here and two negative charges delocalized among those three oxygen atoms. Now, how do we name Nucleotides? Well, this is our genetic formula that we basically have to use when we name the nucleotide that we're dealing with. So we begin with the sugar base.