Other Periodic Trends - PowerPoint PPT Presentation

Loading...

PPT – Other Periodic Trends PowerPoint presentation | free to download - id: 67171e-ZjcwY



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Other Periodic Trends

Description:

Other Periodic Trends Electronegativity The tendency of an atom to attract electrons to itself when combined with another element. It increases going left to right ... – PowerPoint PPT presentation

Number of Views:35
Avg rating:3.0/5.0
Slides: 10
Provided by: HEB50
Learn more at: http://www.gcisd-k12.org
Category:
Tags: periodic | trends

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Other Periodic Trends


1
Other Periodic Trends
2
Ionization Energy
  • Amount of energy required to remove an electron
    from the ground state of a gaseous atom or ion.
  • First ionization energy is that energy required
    to remove the first electron.
  • Second ionization energy is that energy required
    to remove the second electron, etc.

3
Ionization Energy
  • It requires more energy to remove each successive
    electron.
  • When all valence electrons have been removed, the
    ionization energy takes a quantum leap.

4
Trends in First Ionization Energies
  • As one goes down a column, less energy is
    required to remove the first electron.

5
Trends in First Ionization Energies
  • Generally, as one goes across a row, it gets
    harder to remove an electron.

6
Electron Affinity
Energy change accompanying addition of electron
to gaseous atom Cl e- ??? Cl-
7
Trends in Electron Affinity
In general, electron affinity becomes more
exothermic as you go from left to right across a
row.
8
Electronegativity
  • The tendency of an atom to attract electrons to
    itself when combined with another element.
  • It increases going left to right across a period.
  • It decreases going down a group.

9
(No Transcript)
About PowerShow.com