1. Back to the Basics
The Periodic Table

2. Why is it helpful? Metal vs non-metal Groups Charges Diatomic Elements
Molar Mass

3. Metals

4. Metals Will always be the first part of an ionic compound
If in ionic form, will have a positive charge
Ionic form means that it has lost electrons, making it a charged particle

5. Non-metals

6. Non-Metals Will always be the second part of an ionic compound
If in ionic form, will have a negative charge
Ionic form meaning it has gained electrons, making it a charged particle

7. Important Groups
Group 1 – Alkali Metals

8. Important Groups
Group 2 – Alkaline Earth Metals

9. Important Groups
Transition Metals

10. Important Groups
Group 3

11. Important Groups
Group 7 - Halogens

12. Charges Charged particles are called ions
Cations = positively charged particles
Metals
Ammonium ion
Anions = negatively charges particles
Non-metals
Rest of the polyatomic ions
We figure out charges based on how far the element is from a filled valance shell (closest noble gas in either direction)

13. Charges *transition metals, and group 4 can have multiple charges*
Zn+2
Ag+1
+1 +2

14. Diatomic Elements
There are 7 diatomic elements. We refer to them as Br I N Cl H O F. These

15. Molar Mass
Molar mass is the mass of one mole of a substance. Units are either g/mol or amu. We use this number when converting between grams and moles