1. Bell Work 9/23/2014:
On the periodic table, each column is called a __________.
Each element in a ___________ has the same number of ________________ in their outer orbital, or ___________.
The electrons in the outer shell are known as __________ electrons.

2. In your notebook, draw the Bohr Diagrams for the first 20 elements

3. Lewis Dot Structures
11 May 2019

4. Lewis Structures Find your element on the periodic table.
Determine the number of valence electrons.
This is how many electrons you will draw.

5. Lewis Structures Find out which group (column) your element is in.
This will tell you the number of valence electrons your element has.
You will only draw the valence electrons.

6. Groups - Review Group 8 = 8 electrons Group 1 = 1 electron
Except for He, it has 2 electrons
Group 2 = 2 electrons
Each column is called a “group”
3, 4, 5, 6, 7
Each element in a group has the same number of electrons in their outer orbital, also known as “shells”.
The electrons in the outer shell are called “valence electrons”

7. C Lewis Structures Write the element symbol.
Carbon is in the 4th group, so it has 4 valence electrons.
Starting at the right, draw 4 electrons, or dots, counter-clockwise around the element symbol. C

8. C Lewis Structures Check your work.
Using your periodic table, check that Carbon is in the 4th group.
You should have 4 total electrons, or dots, drawn in for Carbon. C

9. Lewis Structures
Try these elements on your own: H P Ca Ar Cl Al C

10. On my own…. H P Ca Ar Cl Al

11. Lewis Structures
Try these elements on your own: H P Ca Ar Cl Al H

12. Lewis Structures
Try these elements on your own: H P Ca Ar Cl Al P

13. Lewis Structures
Try these elements on your own: H P Ca Ar Cl Al Ca

14. Lewis Structures
Try these elements on your own: H P Ca Ar Cl Al Ar

15. Lewis Structures
Try these elements on your own: H P Ca Ar Cl Al Cl

16. Lewis Structures
Try these elements on your own: H P Ca Ar Cl Al Al

17. Review the Basics Write the _____________ for the element.
How many ____________ electrons?
Start on the _____________ and draw the electrons counter-clockwise around the element __________ .
Check your work— did you draw the correct number of electrons?

18. Lewis Structures
You should know how to draw Lewis Structures for the first 20 elements.