The Trends of the Periodic Table

The Trends of the Periodic Table

Storyboard Text

  • Today, we are learning about Periodic Table Trends!!
  • This is the distance between the nucleus and the outer electron shell of the atom.  When you go across a period, the atomic radius increases. Also the size of the atom will increase as advances down a group.
  • First, we have the atomic raduis
  • Which will have a higher atomic radius? Flourine or Chlorine
  • Chlorine because it is down more in the group.
  • Correct! God job Joey! 
  • This is the distance between the nucleus and outermost electron shell in an ion. As the ions advance further down in a group, the radius increases too.
  • Next we have the ionic radius
  • What are two things that can affect ionic radii?
  • Effective nucear charge and the sheilding effect.
  • That's right! Good job, Kirston!
  • This this the amount of energy it takes to remove a valence electron from an atom to make it into an ion. 
  • Now its time to talk about Ionization Energy
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