Dose anybody knows this for 50 points??? 1. How many groups or families are on the periodic table?
2. How are elements in the same group similar?

3. How many periods are on the periodic table?
4. How are elements in the same period similar?
5. Which elements are considered metalloids?
6. Which elements are found on the zig zag “stair step” ?
7. What are the properties of metalloids?


8. Which Groups are metals?
9. What are the physical properties of metals?


10. Which Group is most reactive?
11. What are some of the characteristics of Alkali Metals?

12. Which group is inert or non-reactive?
13. Which group is known as Alkaline Earth Metals?
14. What are some characteristics of Group 2?

15. What is group 17 known as?
16. What are some characteristics of Group 17?