1. Learning Target Review: I can explain what an ion is and how an ion forms
Grab a board, marker and eraser
Take out your periodic table
Draw the Lewis Dot for elements 1-20
1 dot for each valence electron
Determine the ion charge for elements 1-20

3. Learning Target Review: I can explain what an ion is and how an ion forms
Grab a board, marker and eraser
Take out your periodic table
Draw the Lewis Dot for elements 1-20
1 dot for each valence electron
Determine the ion charge for elements 1-20

4. Learning Target: I can make compounds using ions
Making Compounds
Learning Target:
I can make compounds using ions

5. Atoms
# protons = # electrons
the atom is balanced

6. Neutral

8. Charge
Electrons can sometimes be separated from the atom temporarily

9. Ion
Charged atoms are called ions

10. + charge Electron is separated from atom Now the # of protons
does not equal
the # of electrons

11. - charge An extra electron attaches to an atom
Now the # of protons and # of electrons is not balanced
There are more
- pieces

12. + and - combine
Na and Cl

13. The Compound Bunch

14. Here’s a story about an alkali metal

15. who had only 1 valence electron

16. There were 5 others in the family

17. The heaviest was radioactive

18. This is chlorine

19. with 7 valence electrons
Only 7

20. who like the others in his halogen family

21. Wished to be complete like the noble gases

22. With 8 valence electrons

23. Then one day sodium met chlorine

24. and they knew that it was much more than a hunch

25. That these 2, they could form a compound

26. So chlorine took sodium’s electron and that’s how they make our table salt

27. Table Salt
Na Cl -1
NaCl
sodium chloride

28. Making Compounds Need a metal and a non-metal Can only use 2 elements
Ion charges need to = zero
Li Cl-1 = LiCl or Li Li O-2 = Li2O
Metal goes 1st in the compound
Naming the compound:
write the metal name followed by the
nonmetal name but change the
ending to –ide Magnesium Iodide