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Bell Work

Bell Work. What is the difference between protons, neutrons, and electrons? What are the three classes of elements?. Physical Science – Lecture 32. Introduction to Periodic Table. Review from Yesterday. What are atoms? What are the three subatomic particles? What are elements?

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Bell Work

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  1. Bell Work • What is the difference between protons, neutrons, and electrons? • What are the three classes of elements?

  2. Physical Science – Lecture 32 Introduction to Periodic Table

  3. Review from Yesterday • What are atoms? • What are the three subatomic particles? • What are elements? • What are the main parts of a periodic square? • What is the difference between atomic numbers and atomic masses?

  4. Atom

  5. Periodic Law • Law that states that the physical and chemical properties of elements are periodic functions of their atomic numbers.

  6. Labeling the Periodic Table • Groups are numbered 1-18 • Periods are numbered 1-7

  7. Groups and Families • Columns of elements in the periodic table

  8. Periods • Horizontal row of elements in the periodic table.

  9. Groups on the Table • Elements arranged in order of increasing atomic number. • Breaks in the table are assigned to help line up elements in a certain way (periodic law).

  10. Alkali Metals • Group 1; has 1 valence electron.

  11. Alkali Metals – Group 1A

  12. Alkaline earth metal • Group 2; has 2 valence electrons.

  13. Alkali Earth Metals – Group 2A

  14. Transition metal – elements in the middle of the table that have properties of metals but do not belong to a specific group.

  15. Transition Metals

  16. Boron family • Group 13; has 3 valence electrons.

  17. Carbon family • Group 14; has 4 valence electrons.

  18. Nitrogen family • Group 15; has 5 valence electrons.

  19. Oxygen family • Group 16; has 6 valence electrons.

  20. Halogen family • Group 17; has 7 valence electrons; most reactive of all groups.

  21. Halogens – Group 7A (17)

  22. Noble (inert) gas • Group 18; has 8 valence electrons; generally non-reactive elements.

  23. Nobel Gases – Group 8A (18)

  24. Rare-earth element • General term for any element in the lanthanide or actinide series.

  25. Lanthanoid (lanthanide) series • first row of rare-earth elements.

  26. Lanthanide Series

  27. Actinoid (actinide) series • second row of the rare-earth elements.

  28. Actinide Series

  29. Pop Quiz • Remember to put the NAME, DATE, and PERIOD in the upper right hand corner if you do not want 5 points taken off.

  30. Label the Diagram 1 2 3 4

  31. Label the Diagram 5 6 7 8

  32. Question 9 • What is the difference between groups/families and periods on the periodic table?

  33. Question 10 • What is the difference between atomic numbers and atomic masses? Be as specific as possible.

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