October 2023 1 10 Report
1. Completar la siguiente tabla, suponiendo que cada columna representa un átomo neutro: símbolo 39K 55 Min 112 137B a Pb 25 48 56 82 125 82 Protones (pt) Neutrones (nº) Electrones (e) Numero Atomico (Z) Número de masa Atómica (A) Carga Atómica (CA) 207 1​
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