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Periodic Table Revision
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Periodic Table Revision
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25 Questions

1. Which group number contains very unreactive elements?

2. Can two elements have the same atomic number?

3. Brittle and no luster?

4. Noble gases have __________, making them unreactive.

5. What group of elements has properties of metals and non-metals?

6. Which group number contains the most reactive nonmetals?

7. Alkali metals combine with other elements because they are very...

8. How do you write an element symbol with two letters? ________________

9. Semiconductors?

10. What are the two rows at the bottom of the Periodic Table called?

11. Predict the characteristics of element #114 if newly discovered. - Metal, metalloid, or non-metal?)_________

12. - Very reactive, somewhat reactive, very unreactive?____________

13. Harder metals used in Jewelry and construction are known as________________

14. Helium has how many valence electrons?

15. At room temperature most of the nonmetals take what form, solid, liquid, or gas?________________

16. Hydrogen is ___ a metal.

17. Moving from _______________ across Periods 2 and 3, one valence electron is added to each atom. ,

18. Good conductors of heat/electricity?

19. Elements in the same _________ have similar properties.

20. ____________ contain 6, 7 and 8 valence electrons. ,

21. Which element is the most abundant in the world?________________

22. What are elements in the groups 3-12 called?

23. Explain why helium is used for filling balloons or blimps instead of hydrogen.

24. Which of the following have the same number and arrangement of valence electrons? Groups or Periods

25. 20.Where is the Atomic Number of an element found?

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