5.1

~Ionic Compounds~

In 5.1 we learned about ionic compounds. We described how ions are formed and in which arrangements they are stable. We learned how to predict the number of electrons lost or gained and the oxidation number. We learned what a cation and anion is. We defined ionic radius and compared cation and anion radius to a neutral atom. We wrote names for binary ionic compounds and also how to write charges with polyatomic ions.

Need to Know

- What an ion is and how it becomes stable

- Which elements are cations and anions

- How ionic radius changes

- How to write binary ionic compounds

- Polyatomic ions

5.1 was quite challenging in some aspects. The hardest part was understanding transition metals when wrote as an ionic compound.

We need to know this information so we can move forward into molecules and covalent bonds.