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What is the charge of an atom's nucleus if it has 20 protons, 21 neutrons, and 20 electrons?
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What is the charge of an atom's nucleus if it has 20 protons, 21 neutrons, and 20 electrons?

User Elderry
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Term an atom that contains 20 protons, 21 neutrons and 20 electrons has: Definition "no charge" If an atom is neutral there is one electron for every proton.

User Sakinah
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