Answer:
9. Electron Affinity
10. The second option....
What the definition of each period and group and element and every valence electron
Fluorine is a nonmetal and as such it would need to take in or obtain an electron from a metal to have a stable octet, or full number of 8 electrons in its valence shell. Thus due to the indifference of electrons and protons it becomes an anion, a negatively charged ion.
