Reactivity. It is the ability of matter to combine chemically with other substances.
Fluoride is an anion of Fluorine
What this means is that the two have the same number of protons (9), but Fluoride has 10 electrons compared to Fluorine's 9.
So the answers are:
Protons - 9
Neutrons - 9
Electrons - 10
Atomic Number - 9
Atomic Mass - 19 g/mol
Answer:
11.35 g/cm³
Explanation:
If your rounding then 11.4. hope this helps :)