How do you find out how many protons an atom has?

Answer 1

Every element has its own unique atomic number. The atomic number tells how many protons are in 1 atom of that element. Since no 2 elements have the same same atomic number, no 2 elements have the same number of protons. Basically, the atomic # is the same as the # of protons. For example: Aluminum= ''Al'' has an atomic # of 13, so it has 13 protons.

Answer 2

The number of protons that an atom has is the same as the atomic number of the element. It is also the same as the number of electrons if the atom is neutral. If you are given the mass number of the atom, then subtract the number of neutrons and you will be left with protons.

Answer 3

The number of protons in any atom is equivalent to its atomic number. This can be found in any Periodic Table.

Answer 4

The atomic number of an element is equal to the number of protons it has.

Answer 5

You can figure this out by either looking at the atomic number for that atom or to look at the amount of electrons the atom has. Both numbers should be the same.

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