makenna & kallie
Why They Form
They form to be like the noble gases, they want a full outer energy level to become stable.
Kinds of Ions and How to Detemine Them
There are negative and positive ions. The positive ions are called cation. The negative ions are called anions. You can tell what the ion is by its charge. If an atom has more protons then electrons then it is positivley charged making it a cation. If the atom has more electrons than protons its called an anion and has a negative charge.