Odpowiedź:
symbol :Ca
42
Ca 20e- 20p+ 20n°
20
20 Ca K2 L8 M8 N2
1s2 2s22p6 3s23p6 4s2
====
elektrony walencyjne: N2 --> 4s2
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Odpowiedź:
symbol :Ca
42
Ca 20e- 20p+ 20n°
20
20 Ca K2 L8 M8 N2
1s2 2s22p6 3s23p6 4s2
====
elektrony walencyjne: N2 --> 4s2