Lo numèro atomic, que se pòt representar amb la letra Z, correspond al nombre de protons presents dins lo nuclèu atomic.
S'emplega per classificar los elements quimics coneguts dins la taula periodica.
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Quimia | Elements quimics |
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Listas per simbòl ~ per nom ~ Tablèu periodic |
Dmitrii Mendeleiev ~ Ernest Rutherford |
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