All atoms of the same elements have the same what?

The same number of proteins in their nucleus.

Below

Explanation:

All atoms of the same element have the same amount of protons! This is because the number of protons that exist in the nucleus is the element's atomic number.

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c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

i think its 5049.

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