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Why dont we include the mass of an atoms electrons in the atomic mass?
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Why dont we include the mass of an atoms electrons in the atomic mass?

User Jyoti JK
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Answer:

good question

Step-by-step explanation:

User Blai Pratdesaba
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Because protons and neutrons are so much more massive than electrons, almost all of the atomic mass in any atom comes from the nucleus, which contains all of the neutrons and protons.
User Elad Joseph
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