1. Today’s Agenda: Notes on the periodic table Periodic table activity HW: Read section 6-1 and answer questions 1-6 on page 158

2. Periodic Table of the Elements:

3. hot / cold moist / dry Periodic Table of the Elements:

5. In the 1800’s, chemists began using electricity and spectrometers to separate and identify elements Once they could measure the atomic mass, patterns began to emerge

6. Periodic Table of the Elements: In the 1800’s, chemists began using electricity and spectrometers to separate and identify elements Once they could measure the atomic mass, patterns began to emerge John Newland arranged the elements like musical octaves.

7. Periodic Table of the Elements:

8. Dmitri Mendeleev made the first periodic table.

11. Groups or Families

12. Periods

13. Representative Elements

14. Transition Elements

15. Metals, metaloids, nonmetals

16. Alkali metals

17. Alkaline earth metals

18. halogens

19. Noble gasses

20. Periodic Table of the Elements:

24. .

25. Vocabulary: Atomic radius Half the distacne between two bonded atoms Electronegativity How strongly an atom attracts electrons Ionization energy Energy required to remove an electron from an atom.

26. Quick Work: 1.Turn to page 155 2.Using the periodic table as a guide, describe the trends that you see in melting point, boiling point, and atomic radius for the alkali metals 3.Answer the “Thinking Critically” questions.

27. Homework: Read section 6-1 Answer questions 1-6 on page 158