A. 16 protonów, 18 elektronów, 17 neutronów
B. 19 protonów, 18 elektronów, 21 neutronów
C. 4 protony, 2 elektrony, 6 neutronów
D. 17 protonów, 18 elektronów, 18 neutronów
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A. 16 protonów, 18 elektronów, 17 neutronów
B. 19 protonów, 18 elektronów, 21 neutronów
C. 4 protony, 2 elektrony, 6 neutronów
D. 17 protonów, 18 elektronów, 18 neutronów