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Making Atom Models: Bohr Models

Making Atom Models: Bohr Models. Billion October 7, 2009. Review From Yesterday. What is an atom? What are protons? Where are they located? What are neutrons? Where are they located? What are electrons? Where are they located?

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Making Atom Models: Bohr Models

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  1. Making Atom Models:Bohr Models Billion October 7, 2009

  2. Review From Yesterday • What is an atom? • What are protons? Where are they located? • What are neutrons? Where are they located? • What are electrons? Where are they located? • Element Song: http://www.privatehand.com/flash/elements.html

  3. Materials • You will need a yellow, blue, and red map pencil/crayon. • Pencil • Making Atom Models WS • Periodic Table of Elements WS • Atom Models

  4. Beads • Yellow beads = protons • Blue beads = neutrons • Red beads = electrons

  5. Lab Sheets • Making Atoms Models– Draw an atomic model for each element. Use map pencils. Also, complete the information at the top. • Example: • Hydrogen’s symbol = H, 1 proton, 1 electron, 0 neutrons

  6. Periodic Table of the Elements • Complete the Periodic Table for each atom constructed in class. Write the atomic number and mass number. Look at the top of the table for further instructions.

  7. Atom Model Construction • We will do atoms 1-9 today together. • I will walk around and look at your models to check if they are correct. • Look at the PowerPoint screen to see how many protons, neutrons, and electrons. Also, a periodic table provides this info.

  8. Hydrogen • Symbol: H • Protons: 1 • Electrons: 1 • Neutrons: 0

  9. Helium • Symbol: He • Protons: 2 • Electrons: 2 • Neutrons: 2

  10. Lithium • Symbol: Li • Protons: 3 • Electrons: 3 • Neutrons: 4

  11. Beryllium • Symbol: Be • Protons: 4 • Electrons: 4 • Neutrons: 5

  12. Boron • Symbol: B • Protons: 5 • Electrons: 5 • Neutrons: 6

  13. Carbon • Symbol: C • Protons: 6 • Electrons: 6 • Neutrons: 6

  14. Nitrogen • Symbol: N • Protons: 7 • Electrons: 7 • Neutrons: 7

  15. Oxygen • Symbol: 0 • Protons: 8 • Electrons: 8 • Neutrons: 8

  16. Fluorine • Symbol: F • Protons: 9 • Electrons: 9 • Neutrons: 10

  17. Neon • Symbol: Ne • Protons: 10 • Electrons: 10 • Neutrons: 10

  18. Sodium • Symbol: Na • Protons: 11 • Electrons: 11 • Neutrons: 12

  19. Magnesium • Symbol: Mg • Protons: 12 • Electrons: 12 • Neutrons: 12

  20. Aluminum • Symbol: Al • Protons: 13 • Electrons: 13 • Neutrons: 13

  21. Silicon • Symbol: Si • Protons: 14 • Electrons: 14 • Neutrons: 14

  22. Phosphorus • Symbol: P • Protons: 15 • Electrons: 15 • Neutrons: 16

  23. Sulfur • Symbol: S • Protons: 16 • Electrons: 16 • Neutrons: 16

  24. Chlorine • Symbol: Cl • Protons: 17 • Electrons: 17 • Neutrons: 18

  25. Argon • Symbol: Ar • Protons: 18 • Electrons: 18 • Neutrons: 22

  26. Questions (On Notebook Paper) • 1. How many energy levels do all of the atoms on the first row have? • 2. How many energy levels do all of the atoms on the second row have? • 3. How many energy levels do all of the atoms on the third row have? • 4. How do you know which atomic number comes next?

  27. Questions (On Notebook Paper) • 5. Is there an exact pattern among the atomic masses? • 6. How can you figure out the number of protons by looking at the data on the periodic table? • 7. How can you figure out the number of electrons by looking at the data on the periodic table?

  28. Questions (On Notebook Paper) • 11. What pattern do you notice in the number of protons and electrons? • 12. Is there a pattern in the number of protons and neutrons?

  29. Questions (On Notebook Paper) • 8. How do you calculate the number of neutrons by using the atomic number and the atomic mass? • 9. How many electrons must an atom have before it needs two energy levels? • 10. How many electrons must an atom have before it needs three energy levels?

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