1. Chalkboard Challenge: The Periodic Table and Periodicity
Copyright © 2002 Glenna R. Shaw and FTC Publishing
All Rights Reserved

2. Let’s Play
Final Challenge
Regions of the Table, I
Regions of the Table, II
History of the Table
Periodicity
Trends
100
100
100
100
100
200
200
200
200
200
300
300
300
300
300
400
400
400
400
400
500
500
500
500
500

3. Regions of the Table, I for 100
What are the metals?
100
Most of the elements on the Table are of this type, exhibiting properties of luster, electrical conductivity, ductility, and malleability.

4. Regions of the Table, I for 200
What are the noble gases?
200
The unreactive, Group 18 elements.

5. Regions of the Table, I for 300
What are the actinides?
300
Elements

6. Regions of the Table, I for 400
What are the alkali metals?
400
The highly-reactive, Group 1 elements.

7. Regions of the Table, I for 500
What are the halogens?
500
The highly-reactive, Group 17 elements.

8. Regions of the Table, II for 100
What are the nonmetals?
100
This broad classification of elements consist of insulators, and are generally gases or brittle solids at room temperature.

9. Regions of the Table, II for 200
What are the metalloids?
200
These “stair-step” elements exhibit properties of both insulators and conductors.

10. Regions of the Table, II for 300
What are the lanthanides?
300
Elements

11. Regions of the Table, II for 400
What are the coinage metals?
400
The Group 11 elements were often used in historical times as currency.

12. Regions of the Table, II for 500
What are the alkaline earth metals?
500
The Group 2 elements take a 2+ charge when they become cations.

13. History of the Table for 100
Who is Dmitri Mendeleev?
100
This Russian scientist is credited with inventing the Table, around the year 1870.

14. History of the Table for 200
What is atomic mass?
200
Mendeleev based his Table on this property of the elements.

15. History of the Table for 300
What is atomic number?
300
The British scientist Henry Moseley modified Mendeleev’s Table, using this property of the elements.

16. History of the Table for 400
What is the periodic law?
400
This principle states that the properties exhibited by elements repeat at regular intervals.

17. History of the Table for 500
What are unknown elements?
500
Using his Table, Mendeleev was able to predict the properties of these substances, without having any prior knowledge about them.

18. The general term that refers to the size of a neutral atom.
Periodicity for 100
What is atomic radius?
100
The general term that refers to the size of a neutral atom.

19. The general term that refers to the size of a cation or an anion.
Periodicity for 200
What is ionic radius?
200
The general term that refers to the size of a cation or an anion.

20. Periodicity for 300
What is ionization energy?
300
The amount of energy required to remove an electron from an atom.

21. Periodicity for 400
What is electronegativity?
400
The tendency for a bonded atom to attract electrons to itself.

22. What is the shielding effect?
Periodicity for 500
What is the shielding effect?
500
The tendency for the kernel electrons to block the valence electrons from the positive, attractive force of the nucleus.

23. What is “from top to bottom”?
Trends for 100
What is “from top to bottom”?
100
Within a group, this is the direction in which the atomic radius increases.

24. What is “from right to left”?
Trends for 200
What is “from right to left”?
200
Within a period, this is the direction in which the atomic radius increases.

25. What is “from top to bottom”?
Trends for 300
What is “from top to bottom”?
300
Within a group, this is the direction in which the shielding effect increases.

26. What is “from left to right”?
Trends for 400
What is “from left to right”?
400
Within a period, this is the direction in which ionization energy increases.

27. What is “from bottom to top”?
Trends for 500
What is “from bottom to top”?
500
Within a group, this is the direction in which the ionization energy increases.

28. What is “from lower left
Final Challenge
End Game
Write Your
Final Challenge
Wager
What is “from lower left
to upper right”?
Across the entire Periodic Table, this is the direction in which electronegativity increases.
TIME’S
UP!

29. “Luck is for the ill-prepared.” Alex Hess
Game Over
STUDY FOR YOUR TEST.
“Luck is for the ill-prepared.”
Alex Hess
Played by Arnold Schwarzenegger
Movie: Junior