1. PERIODICITY TIM WALSH MILFORD HIGH SCHOOL CONCEPTS OF CHEMISTRY 2015-2016

2. A table of all the elements ordered by the number of protons Periodic Table

4. Families Halogens Noble Gases

5. Periodic Table Families Columns of elements labeled with numbers or roman numbers with letters Elements in the same column have similar properties Families have names such as halogens or noble gases

6. Periodic Table Periods

7. Periodic Table Periods Rows of elements Elements in the same column do NOT have similar properties Elements increase in atomic number from left to right in a period

8. Exit Card What is the FAMILY and PERIOD for the element: Pd?

9. Metals, Nonmetals, and Metalloids

10. Metals Shiny Malleable Hard Dense Usually solids at room temperature

11. Nonmetals Brittle May be liquids or gases at room temperature Low density Not malleable Little luster

12. Metalloids Properties in between metals and nonmetals!

13. Aluminum Metal or Nonmetal?

14. Aluminum Metal or Nonmetal?

15. Iodine Metal or Nonmetal?

16. Iodine Metal or Nonmetal?

17. Copper Metal or Nonmetal?

18. Copper

19. Metal or Nonmetal? Chlorine

20. Metal or Nonmetal?

21. Magnesium

22. Metal or Nonmetal?

23. Oxygen

24. Metal or Nonmetal?

25. Periodic Trends Patterns in the periodic table for characteristics of elements

26. Periodic Trends Electronegativity How much an atom wants an electron Less electronegative More electronegative

27. Periodic Trends Electronegativity

28. Periodic Trends Ionization Energy How much energy is required to remove an electron from an atom Atom - Energy

29. Periodic Trends Ionization Energy

30. Periodic Trends Atomic Radius The distance from the center to the outer edge of an atom

31. Periodic Trends Atomic Radius INCREASES

32. Periodic Trends Metallic Character Lose electrons more easily Conduct electricity Dense Shiny (have luster) Solid at Room Temperature Malleable Hard

33. Periodic Trends Metallic Character INCREASES