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15-04-2016
Physics

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O núcleo de um átomo possui 5 prótons e 6 nêutrons.Determine o número atômico (Z) r o.número de massa (A)

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Аноним Аноним

16-04-2016

numero atômico = numero protons = 5
numer de massa = numero protons + numero nêutrons = 11

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