malumaria4bzz malumaria4bzz

19-12-2022
Social Studies

contestada

02- Em um átomo que apresenta 30 elétrons e 60 nêutrons, podemos afirmar que seu número de
prótons é igual a:
P =
03- Um átomo possui 15 elétrons e 20 prótons, qual é seu número de massa?
A=

Respuesta :

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