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Physical Science Fall 07 Review

Physical Science Fall 07 Review. 3. Structure of Matter. Structure of Matter. What are the letters in a chemical formula that represent the elements making up that compound?. Structure of Matter. What are the letters in a chemical formula that represent the elements making up that compound?.

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Physical Science Fall 07 Review

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  1. Physical Science Fall 07 Review 3. Structure of Matter

  2. Structure of Matter • What are the letters in a chemical formula that represent the elements making up that compound?

  3. Structure of Matter • What are the letters in a chemical formula that represent the elements making up that compound?

  4. Structure of Matter • What is the mass, charge and location of a proton in an atom?

  5. Structure of Matter • What is the mass, charge and location of a proton in an atom? • Mass = 1 amu • Charge = + 1 positive • Location = nucleus

  6. Structure of Matter • What is the mass, charge and location of an electron in an atom? • Mass = • Charge = • Location =

  7. Structure of Matter • What is the mass, charge and location of an electron in an atom? • Mass = almost zero (0.0001 amu) too small to count • Charge = -1 negative • Location = electron cloud; swarming around, outside the nucleus.

  8. Structure of Matter • What is the mass, charge and location of an neutron in an atom? • Mass = • Charge = • Location =

  9. Structure of Matter • What is the mass, charge and location of an neutron in an atom? • Mass = 1 amu • Charge = neutral/zero • Location = nucleus

  10. Structure of Matter • What is the difference between atomic number and atomic mass?

  11. Structure of Matter • What is the difference between atomic number and atomic mass? • Atomic number is the number of protons and atomic mass is the number of protons + neutrons.

  12. Structure of Matter • A mystery element has 5 neutrons, 6 protons, and 6 electrons. What is its atomic number?

  13. Structure of Matter • A mystery element has 5 neutrons, 6 protons, and 6 electrons. What is its atomic number? • Atomic number = number of protons = 6

  14. Structure of Matter • A mystery element has 5 neutrons, 6 protons, and 6 electrons. What is its atomic mass?

  15. Structure of Matter • A mystery element has 5 neutrons, 6 protons, and 6 electrons. What is its atomic mass? • Mass = neutrons + protons = 5 + 6 = 11

  16. Structure of Matter • A mystery element has 5 neutrons, 6 protons, and 6 electrons. What is the over all charge on this element?

  17. Structure of Matter • A mystery element has 5 neutrons, 6 protons, and 6 electrons. What is the over all charge on this element? • +6 protons -6 electrons -= 0 neutral

  18. Structure of Matter • A mystery element has 5 neutrons, 6 protons, and 6 electrons. What is the element?

  19. Structure of Matter • A mystery element has 5 neutrons, 6 protons, and 6 electrons. What is the element? Atomic number = 6 = Carbon (see periodic chart)

  20. Structure of Matter • A mystery element has 5 neutrons, 6 protons, and 6 electrons. Draw a Bohr model showing energy levels.

  21. Structure of Matter • A mystery element has 5 neutrons, 6 protons, and 6 electrons. Draw a Bohr model showing energy levels.

  22. Structure of Matter • A mystery element has 5 neutrons, 6 protons, and 6 electrons. Draw a Bohr model showing energy levels. Electron (-) Proton (+) Neutron (0) Nucleus Energy Level 1 Energy Level 2

  23. Structure of Matter • How would the atom pictured below form an ion? Electron (-) 4 Proton (+) 4 Neutron (0) 4 Nucleus Energy Level 1 Energy Level 2

  24. Structure of Matter It would lose 2 electrons with a total of 2 electrons remaining Electron (-) 2 Proton (+) 4 +2 The atom would have an overall charge of +2 • How would the atom pictured below form an ion?

  25. Structure of Matter • Atoms with the same number of protons but different numbers of neutrons are called __________.

  26. Structure of Matter • Atoms with the same number of protons but different numbers of neutrons are called __________.

  27. Structure of Matter • What is the name of this symbol? Ne

  28. Structure of Matter • What is the name of this symbol? Ne

  29. Structure of Matter • What do the dots stand for? Ne

  30. Structure of Matter • What do the dots stand for? Ne

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