Question

even though atoms are much to small to see experiments have helped scientist learn about the subatomic particles that compose atoms. the current model of an atom has a nucleus in the center surrounded by an electron cloud which of these parts of the atom has the greatest mass?

Answer 1

The atomic number is defined by the number of protons in an element. An element is defined by the number of protons the nucleus contains and doesn't have anything to do with how many isotopes the element has. Carbon always has an atomic number of 6 and uranium always has an atomic number of 92. I GOTCHU BROOOO GET THATS A BUDDY