What is the Lewis electron-dot diagram for a fluoride ion?

1 Answer
Jan 7, 2017

Fluorine is in Group 17 of the Periodic Table....................

Explanation:

And thus the neutral atom has 7 valence electrons. Of course the elemental form is bimolecular.

![https://tse4.mm.bing.net/th?id=OIP.M6244c0effb47fa90597be8081d7b8a1dH0&pid=15.1&P=0&w=231&h=174](useruploads.socratic.org)

Upon reduction, the fluorine atom forms fluoride, which has 8 valence electrons, and is isoelectronic with a Noble Gas (which one?).

![https://tse3.mm.bing.net/th?id=OIP.M965b7939c45b43a5743fdcc11e885fdeo0&pid=15.1&P=0&w=300&h=300](useruploads.socratic.org)

Which do you think would be bigger; fluorine atom or fluoride ion?