14-11-2017
Chemistry

contestada

Which element attains the structure of a noble gas when it becomes a +1 ion?

K
Ca
F
Ne

Respuesta :

peridorito8864 peridorito8864

14-11-2017

Fluorine, as it has 7 valence electrons. If it gains one more, it becomes stable (8 valence e-).

Potassium has 1 valence e-, Calcium has 2, and Neon already has 8.

Hope this helped! :)

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