1. Get ready for Bell Work.

2. 1

3. 2
How many neutrons does each boron atom contain, and what is Boron’s atomic number?  a.
Boron has 16 neutrons, and the atomic number is 5. b.
Boron has 10.8 neutrons, and the atomic number is 15.8 c.
Boron has 6 neutrons, and the atomic number is 5.

4. 3
Which element from Period 2 has the lowest atomic mass? a. Li b. Ca c. Ne

5. 4
A property that elements Fe, Co and Ni have in common is that they are all...? a.
chemically inert. b.
halogens. c.
transition metals.

6. a. helium (He) b. argon (Ar) c. krypton (Kr)5
Which shaded element shown above has the least amount of mass and the least amount of protons? a.
helium (He) b.
argon (Ar) c.
krypton (Kr)

7. a. K and Ca b. H and Kn c. Ne and Xe6
Based on their locations on the periodic table, which two elements share the most similar chemical properties? a.
K and Ca b.
H and Kn c.
Ne and Xe

8. The circled elements share which characteristic?7
The circled elements share which characteristic? a.
They rarely form chemical bonds. b.
They are alkali metals c.
They are nonmetals d.
They have the same number of electrons.

9. Pencils down and get ready to check.

11. 2
How many neutrons does each boron atom contain, and what is Boron’s atomic number?  a.
Boron has 16 neutrons, and the atomic number is 5. b.
Boron has 10.8 neutrons, and the atomic number is 15.8 c.
Boron has 6 neutrons, and the atomic number is 5.

12. 3
Which element from Period 2 has the lowest atomic mass? a. Li b. Ca c. Ne

13. 4
A property that elements Fe, Co and Ni have in common is that they are all...? a.
chemically inert. b.
halogens. c.
transition metals.

14. a. helium (He) b. argon (Ar) c. krypton (Kr)5
Which shaded element shown above has the least amount of mass and the least amount of protons? a.
helium (He) b.
argon (Ar) c.
krypton (Kr)

15. a. K and Ca b. H and Kn c. Ne and Xe6
Based on their locations on the periodic table, which two elements share the most similar chemical properties? a.
K and Ca b.
H and Kn c.
Ne and Xe

16. The circled elements share which characteristic?7
The circled elements share which characteristic? a.
They rarely form chemical bonds. b.
They are alkali metals c.
They are nonmetals d.
They have the same number of electrons.

18. Alkaline Earth Metals
Noble Gases
Halogens
Alkali Metals
Transition Metals
Lanthinides
Actinides

19. Success Criteria Success Criteria: TOC: #26. Electron Shells Notes
I can use the Periodic Table to identify properties of elements?
TOC:
#26. Electron Shells Notes
#27. Electron Shells Practice

20. # Electron Shells Notes Materials: Foldable & 3 colored pencils or 3 markers.
1st level holds only 2 electrons. 1st level must be full to move on to level 2. Use a color pencil to shade the first shell.
This is a Bohr Diagram.
Success Criteria: I can use the Periodic Table to identify properties of elements?

21. Electron Shells Notes
2nd level can hold only 8 electrons. 2nd level must be full to move to level 3
Add 8 electrons. One at a time clock- wise until you have 4 pairs. Shade in shells 1 and 2.
Success Criteria: I can use the Periodic Table to identify properties of elements?

22. Electron Shells Foldable
3rd level hold up to 18 electrons. 3rd level must be full to move to the 4th and so on. Add the 18 electrons.
Shade in levels 1, 2 and 3.
Success Criteria: I can use the Periodic Table to identify properties of elements?

23. #27. Electron Shells Practice
We will work together to complete the first 2 on your handout. 1. 8 O
Oxygen
16.00
Success Criteria: I can use the Periodic Table to identify properties of elements?

24. Electron Shells Practice2. 3 Li
Lithium
6.94
Success Criteria: I can use the Periodic Table to identify properties of elements?

25. Group Work and Connections
Your group will continue to use the periodic table to find information for numbers 3 and 4 on your handout.
Be sure to use Accountable Talk while you are
working in groups.
Your group will have about 5 minutes to
complete the activity.
Success Criteria: I can use the Periodic Table to identify properties of elements?

26. N=10
P=9
N=14
P=14
Success Criteria: I can use the Periodic Table to identify properties of elements?

27. Independent Work
You will have 3 minutes to complete numbers 5 and 6 independently.
If you finish early, double check your math and the placement of your electrons.
Look carefully at the Periodic Table for connections between the electrons in each element and the number of shells.
Success Criteria: I can use the Periodic Table to identify properties of elements?

28. N=6
P=5
N=18
P=17
Success Criteria: I can use the Periodic Table to identify properties of elements?

29. Exit Ticket
Which element from the Periodic Table above has the greatest number of
Electrons in it’s outer shell? Be ready to justify.
a. Hydrogen (H)
b. Lithium (Li)
c. Sodium (Na)
d. Potassium (K)
Success Criteria: I can use the Periodic Table to identify properties of elements?