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If an atom has 6 protons 6 neutrons and 6 electrons what is the atomic mass of the atom?

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This is Carbon-12 (12C) it has a mass of exactly 12 universal atomic mass units. It serves as the standard for the universal atomic mass scale.

If you look up carbon on the periodic table, you will find that it says 12.011. This difference is because a small amount of carbon has a seventh neutron, which is averaged into the atomic weight given on a periodic table.
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If an atom has 6 protons 8 neutrons and 6 electrons what is the atomic mass of the atom?

The atomic mass is the number of protons, plus the number of neutrons. In this case, 8 + 6 = 14. Furthermore, the six protons (atomic number) tells me that this is carbon; t
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What atom has 6 protons 8 neutrons and 6 electrons?

Because the number of protons (atomic number) of an atom NEVER, NEVER changes, you simply find the element on the periodic table using the number of protons they give. If the