If gold (au) has an atomic number of 79 and a mass number of 197, how many protons does it have and how many electrons does it have?
Gold is 197 times as heavy as a hydrogen atom, i.e. its Relative Atomic Mass (R.A.M.) is 197. Because it is number 79, it has 79 protons. The electrons depend on whether it has a charge or not, but uncharged it has 6. ChaCha again soon!
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