December 2023 2 14 Report
¿Cuantos protones, neutrones y electrones tiene el ion Fe(2+) de masa A=56?

1) protones 56; neutrones 56; electrones 54
2) protones 30 neutrones 26; electrones 28
3) protones 26; neutrones 30; electrones 28
4) protones 28; neutrones 28: electrones 26
5) protones 26; neutrones 30; electrones 24

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