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Other baryons and leptons can't be part of atoms because they're too unstable and decay too quickly to form a stable atom.

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Q: Why is an atom only made of protons neutrons and electrons?
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what is the atom that elements are made of?

An atom is made from neutrons, protons and electrons; neutrons and protons contain quarks and gluons.


What was the atom made of?

an atom contains protons and neutrons in the nucleus, and electrons that whizz around outside.


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Srtucture of an atom?

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The Nucleaus of an atom is made from what?

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