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How many protons are in an atom of Neon?
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How many neutrons are in an atom of Boron?
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How many electrons are in an atom of Copper?
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How many protons are in an atom of Oxygen?
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How many neutrons are in an atom of Lithium?
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How many electrons are in an atom of Rubidium?
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How many protons are in an atom of Chlorine?
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How many neutrons are in an atom of Cobalt?
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How many electrons are in an atom of Potassium?
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How many protons are in an atom of Hydrogen?
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How many neutrons are in an atom of Copper?
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How many electrons are in an atom of Boron?
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How many protons are in an atom of Cobalt?
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How many neutrons are in an atom of Hydrogen?
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How many electrons are in an atom of Lithium?
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How many protons are in an atom of Potassium?
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How many neutrons are in an atom of Chlorine?
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How many electrons are in an atom of Neon?
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How many neutrons are in an atom of Oxygen?
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How many neutrons are in an atom of Rubidium?