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Atoms are composed of ________ and ________. a nucleus; an electron shell a nucleus; an electron shell a nucleus; a membrane a nucleus; a membrane a membrane; an electron shell a membrane; an electron shell

User Stanimirsp
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Answer: Atoms are made up of a nucleus, protons, and electrons.

User Sasha Prent
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Answer:

Atoms are made up of a nucleus, protons, and electrons.

User Thoughtpunch
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