description of the periodic table of elements

1. Periodic table of elements 5/6/2010 Russell Godman

2. 5/6/2010 Russell Godman

4. Alkali Metals

5. Alkaline Earth Metals

6. Transition Metals

7. Metals

8. Metalloids

9. Halogens

10. Noble Gases

11. Rare Earth Metals5/6/2010 Russell Godman

13. high ionization energies

14. High electronegativities

15. Poor thermal conductors

16. Poor electrical conductors 5/6/2010 Russell Godman

17. Alkali Metals Lower densities than other metals One loosely bound valence electron Largest atomic radii in their periods Low electronegativities Highly reactive 5/6/2010 Russell Godman

18. Alkaline Earth Metals Two electrons in the outer shell Two electrons in the outer shell Low electronegativities Readily form divalent cations. 5/6/2010 Russell Godman

19. Transition Metals Low ionization energies Positive oxidation states High melting points High boiling points High electrical conductivity Malleable 5/6/2010 Russell Godman

20. Metals Solids at room temperature (except mercury) High melting points High densities Low electronegativities Malleable Thermal conductors Electrical conductors 5/6/2010 Russell Godman

21. Metalloids Electronegativities between those of metals and nonmetals Ionization energies between those of metals and nonmetals Possess some characteristics of metals/some of nonmetals Reactivity depends on properties of other elements in reaction 5/6/2010 Russell Godman

22. Halogens Very high electronegativities Seven valence electrons (one short of a stable octet) Highly reactive, especially with alkali metals and alkaline earths 5/6/2010 Russell Godman

23. Noble Gases Fairly nonreactive Complete valence shell High ionization energies Very low electronegativities Low boiling points (all gases at room temperature) 5/6/2010 Russell Godman

24. Relative Atomic Mass Atomic Number Symbol Element Name 5/6/2010 Russell Godman

25. Atomic Number The number of Protons in the nucleus 5/6/2010 Russell Godman

26. Relative Atomic Mass The average mass of Protons, Neutrons, and Electrons in a single atom 5/6/2010 Russell Godman

27. Symbol The symbol of the element in question 5/6/2010 Russell Godman

28. Element Name Exactly what it says 5/6/2010 Russell Godman