Friday 1/18

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Friday 1/18

1. When an electron falls to a lower energy level,
   what happens?
2. What outermost sublevels do the electrons of the
   noble gases fill?
3. Name one other section of the Periodic table.
4. What does the Electron Configuration Puzzle spell
   out?

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Periodic Trends

• Periodic table is arranged according to similar
  properties and electron configuration

• Group or family vertical columns (from top to
  bottom)
• Period horizonal rows (from left to right)

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Sections of Periodic Table Pages 392-396)

• Noble Gases

• Outermost s and p sublevels are filled

• Representative Elements (Group A)

• Outermost s and p sublevels are partially filled
• Group 1-7 group number equals the number of
  electrons in the outermost energy level.

• Transition Metals (Group B)

• Outermost s sublevels are filled and the d
  sublevel is partially filled

• Inner Transition Metals

• Outermost s sublevels are filled and the f
  sublevel is partially filled

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Can you recognize these NOBLE gases?
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(No Transcript)
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Representative Elements?
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Transition metals?
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Use your books (p.398) to write the following
trends on your worksheets

1. Ionic radius
2. 1st and 2nd Ionization energy
3. Shielding effect
4. Electronegativity
5. Ionic vs. atomic radius
6. Nuclear charge