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Take Out. Science notebook open to homework Catalyst sheet Pencil. Catalyst. 16 S Sulfur 32.065. Atomic Number: Protons: Neutrons: Electrons: Element Symbol: Element Name: State of Matter: Atomic Mass: Element type:. Energy Levels.

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  1. Take Out • Science notebook open to homework • Catalyst sheet • Pencil

  2. Catalyst 16 S Sulfur 32.065 Atomic Number: Protons: Neutrons: Electrons: Element Symbol: Element Name: State of Matter: Atomic Mass: Element type:

  3. Energy Levels The electrons swirl around the nucleus at certain average distances from the nucleus (the protons and the neutrons) in the electron cloud The areas where the electrons travel are called energy levels.

  4. Why do you think there are two electrons on the inner ring and three on the outer ring?

  5. Only a certain number of electrons can be held in an energy level.

  6. Yellow Brick Road

  7. The maximum number of electrons that can occupy a specific energy level can be found using the following formula: Electron Capacity = 2n2 The variable n represents the number of the energy level in question. Keep in mind that an energy level need not be completely filled before electrons begin to fill the next level.

  8. 13 Al Aluminum 26.982 Atomic Number: Protons: Neutrons: Electrons: Element Symbol: Element Name: State of Matter: Atomic Mass: Element type: Electron Configuration: Green = Nonmetals Yellow = Metals Blue = Transition Metals Orange = Noble Gases

  9. 1s22s22p63s23p1 How many electrons does Al have in each energy level? 1st energy level: 2nd energy level: 3rd energy level:

  10. Write the electron configuration for Carbon Draw a Bohr model of Carbon 6 C Carbon 12.011

  11. Homework Complete electron configuration practice on page 44 of science notebook Atomic structure quiz on Friday

  12. Take Out • Science notebook open to homework • Catalyst sheet • Pencil

  13. Catalyst 51 Sb Antimony 127.60 Write/draw 4 ways to illustrate an atom of the element Antimony (presume a neutral atom) Element Name: Element Symbol: Electron Configuration: Bohr Model:

  14. Valence Electrons Valence electrons are electrons that are in the outer most level of the electron cloud They are always found in s & p orbitals How many valence electrons does Aluminum have?

  15. 1s22s22p63s23p1

  16. Electron Dot Notation Al

  17. Valence electrons 51 Sb Antimony 127.60 1s22s22p63s23p64s23d104p64d105s25p3 Number of valence electrons (in the last s and p orbitals) Electron dot notation: Sb

  18. Homework Complete “5 Ways to Represent an Atom” on page 47 of science notebook Atomic structure quiz on Friday

  19. Take Out • Science notebook open to homework • Catalyst sheet • Pencil

  20. Catalyst 6 C 12.011 Write/draw 5 ways to illustrate the element to the left (presume a neutral atom) Element Name: Element Symbol: Electron Configuration: Bohr Model: Electron Dot Notation:

  21. 6 C Carbon 12.011 1s22s22p2 Number of valence electrons (in the last s and p orbitals) Electron dot notation: C

  22. 15 P 30.973 Write/draw 5 ways to illustrate the element to the left (presume a neutral atom) Element Name: Element Symbol: Electron Configuration: Bohr Model: Electron Dot Notation:

  23. 15 P Phosphorous 30.973 1s22s22p63s23p3 Number of valence electrons (in the last s & porbitals) Electron dot notation: P

  24. 19 K 39.0983 Write/draw 5 ways to illustrate the element to the left (presume a neutral atom) Element Name: Element Symbol: Electron Configuration: Bohr Model: Electron Dot Notation:

  25. 19 K Potassium 39.0983 1s22s22p63s23p64s1 Number of valence electrons (in the last s orbital) Electron dot notation: K 20.098

  26. 54 Xe 131.293 Write/draw 5 ways to illustrate the element to the left (presume a neutral atom) Element Name: Element Symbol: Electron Configuration: Bohr Model: Electron Dot Notation:

  27. 54 Xe Xenon 131.293 1s22s22p63s23p64s23d104p65s24d105p6 Number of valence electrons (in the last s & porbitals) Electron dot notation: Xe

  28. 56 Ba Barium 137.327 Write/draw 5 ways to illustrate the element to the left (presume a neutral atom) Element Name: Element Symbol: Electron Configuration: Bohr Model: Electron Dot Notation:

  29. 56 Ba Barium 137.327 [Xe]6s2 Number of valence electrons (in the last s & porbitals) Electron dot notation: Ba

  30. Homework Complete page 47, answers are on website Prepare for test on Friday Add 5 new vocab words to Vocabulary Section

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