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Cahrol
@Cahrol
July 2022
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O átomo constituído de 17 prótons, 18 nêutros e 17 elétrons apresenta, respectivamente, número atômico e número de massa:
a) 17 e 17
b) 17 e 18
c) 17 e 35
d) 35 e 17
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adrielcavalcant
Verified answer
A = Z + N
Z = prótons = 17
N = nêutrons = 18
A = numero atômico = 17 + 18 = 35
O elemento químico é o Cl
Alternativa c)
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Verified answer
A = Z + NZ = prótons = 17
N = nêutrons = 18
A = numero atômico = 17 + 18 = 35
O elemento químico é o Cl
Alternativa c)