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Criado por husien jama
mais de 8 anos atrás
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what is an atom?
what is an atomic number?
what is a compound?
what is used to look at an atom?
how many known atoms are there?
how many atoms are naturally found on Earth?
how many atoms are made in a laboratory?
what is a molecule?
what is an element?
what is the nucleus?
what are atoms made up of?