Mathematics, 11.06.2021 22:40 goeringwilliam6974

Qual a massa de um átomo cujo Z (n° atômico) é 17 e possui 9 N (NEUTRONS)?
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Qual a massa de um átomo cujo Z (n° atômico) é 17 e possui 9 N (NEUTRONS)?
apresente os cálcul...