1. WRAP UP
List the name and atomic number of the first 18 elements, in order (without your notes, if possible).

2. Periodic Table
Chem II

3. Element Information

4. p s d f Groupings Main Group Main Group Transition Elements
Lanthanides f
Actinides

5. Numbering Systems
Periods
1-7, downward
Groups
1-18, left to right

6. Group Names Group 13 Group 14 Group 15 Group 16 Group 17 Group 18
Alkali Metals
Group 2
Alkali Earth Metals
Group 13
Boron Group
Group 14
Carbon Group
Group 15
Nitrogen Group
Group 16
Oxygen Group
Group 17
Halogens
Group 18
Noble Gases

7. Effective Nuclear Charge
Periodic Trends
Name
Left to Right
Top to Bottom
Effective Nuclear Charge
Increases
Decreases
Atomic Radius
Ionization Energy
Electron Affinity
Stable

8. Periodic Trends

9. History and Development
Triads – Johann Dobereiner
Similar properties and masses
Law of Octaves – John Newlands
8th repeating

10. History and Development
Lothar Meyer and Dmitri Mendeleev
Periodic table
Atomic mass
Henry Moseley
Atomic number

11. WRAP UP Explain why Dobereiner put elements into Triads.
Which one of the following elements has both a low ionization energy and a positive electron affinity?
a. K b. Ne c. Br d. Fe e. N

12. WARM UP
What is a representative/main group element? Give three examples of main group elements.
Give two examples of transition elements.
Give one example of a lanthanide.

13. WRAP UP Name an element that has a very low electron affinity.
Name an element that is very large in size.
Name an element with a very large effective nuclear charge.

14. WARM UP
Pick up the Flame Tests lab handout, and begin your pre-lab on a new piece of lab or notebook paper.

15. How can you apply this to Chemistry?
WARM UP
“One important key to success is self-confidence. An important key to self confidence is preparation.”
–Arthur Ashe
Do you agree with this? Do you feel more confident when you are prepared?
How can you apply this to Chemistry?

16. WRAP UP “Average is as close to the bottom as it is to the top.”
1) What does this mean to you?
2) How can you apply this quote to school?