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8th Grade 11/3 Do Now:

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8th Grade 11/3 Do Now: Carbon Info Sheet (Review of atomic structure) Launch Lab Answer #4 in your copybook. Skim through p. 464-466. How does this activity relate to ... – PowerPoint PPT presentation

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Title: 8th Grade 11/3 Do Now:


1
8th Grade11/3 Do Now
  • Carbon Info Sheet
  • (Review of atomic structure)

2
Launch Lab
  • Answer 4 in your copybook.
  • Skim through p. 464-466.
  • How does this activity relate to our new chapter?

3
Read p. 464-466
  • Take notes if you havent already

4
  • Review
  • What are electrons?
  • Where are they?
  • In a neutral Carbon atom how many electrons are
    there?

5
Electron Arrangement
  • Energy levels different positions for an
    electron in an atom
  • Further levels hold more electrons
  • 1st level 2
  • 2nd level 8
  • 3rd level 18
  • 4th level 32

6
  • Which electron as the most energy?
  • Which electron has the least amount of energy?
  • Which electron is easiest to remove?

7
Create Energy Levels for
  • Hydrogen
  • Lithium
  • Boron
  • Carbon
  • Nitrogen
  • Oxygen
  • Flourine
  • Neon

8
  • What pattern do you notice?
  • Look at the shortened periodic table on p. 467
  • What patterns do you notice?
  • What do different groups have in common?

9
Noble Gases
  • 8 electrons in outer level
  • 8 electrons is most stable
  • Noble gases dont combine easily

10
Halogens
  • Need 1 electron to obtain stable outer layer
  • Flourine most reactive because outer layer is
    closest to nucleus
  • Reactivity decreases down the group

11
Alkali Metals
  • 1 electron in outer energy level
  • This is the electron removed during a reaction
  • Less energy is needed to remove this electron
  • Reactivity increases down a group
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