First of all, this forum looks great, I look forward to learning a lot.
So my question is this, atoms that have more than 20 electrons and protons, (the 2-8-8-2) are they able to become ions, and so become negatively, or positively charged?
Or are atoms with more than 20 electrons and protons like noble gases and will just remain neutral?
Edit, it seems that they are hallogenic non metals, so they become negatively charged. But how do I determine the -# if my text book has not expanded farther than 2-8-8-2 if it does even go further.
Also, are covalent compounds limited to non metals sharing electrons, or as well as metals sharing electrons?