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Estudos Gerais • 04/18/2024

19- Determine a fraçäo da massa total de um átomo de Ca que ...

19- Determine a fraçäo da massa total de um átomo de Ca que e decorrente dos (a) nêutrons; (b) prótons; (c) elétrons. 20- Determine a fração da massa total de um átomo de B que é decorrente dos (a) nêutrons; (b) prótons; (c) elétrons.

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