Charge atomique

Charge atomique

Charge atomique

Source google image: https://slideplayer.fr/slide/9223461/27/images/3/N+7+14+num%C3%A9ro+atomique+%28%23+protons%29+Symbole+chimique%3A+Nom+de+l%E2%80%99%C3%A9lement.jpg

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