Questions and Answers - How do I find the number of protons, electrons and neutrons that are in an atom of an element?
Atomic number - Wikipedia
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Is there an easy way to find number of valence electrons" - Chemistry Stack Exchange
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/GettyImages-523446050-5897be0a5f9b5874ee7c9fa6.jpg "Number of Protons, Neutrons, and Electrons in an Atom")
Number of Protons, Neutrons, and Electrons in an Atom
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