Determinaţi numărul atomic pentru elemetele situate în:
a) grupa a II-a A, perioada 2;
b) gru...
Chemistry, 26.02.2021 19:00 noahrdavila1978
Determinaţi numărul atomic pentru elemetele situate în:
a) grupa a II-a A, perioada 2;
b) grupaa V-a A, perioada 3;
c) grupa a II -a A, periada 4;
d) grupa a VI-a A, perioada 3.
Answers: 1
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