June 2022 2 6 Report
Wskaż grupę izotopów tego samego pierwiastka chemicznego.
A. 40/19E, 40/20E, 40/18E.
B. 24/12E, 23/11E, 27/13E.
c. 26/12E, 24/12E, 25/12E.
D. 41/20E, 40/20E, 40/18E.​

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