November 2018 2 59 Report

1. trzeba napisac symbol jonu, ktory:

a) ma 8 protonow, i 10 elektronow

b) 17 protonow, i 18 elektronow

2. ktore z tych symbolow maja 8 elektronow w zewnetrznym warstwie: S 2-; Si; O 2-'; Ne; Ca 2+; N; Ar

pomozcie prosze, dam naj


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