COLLISIONS

collision.jpg

The meeting of particles or of bodies in which each exerts a force upon the other, causing the exchange of energy or momentum. – dictionary.com
 Follow the steps below in order and complete the activities in your notebook
  • Watch this ¬†simulation¬†and write a brief explanation of what you saw.
  • Click on this¬†LINK¬†and watch videos and answer questions ( only the question on the page not the additional link found on the page) in your notebooks.
DUE DATE: THURSDAY FEB. 23rd

HOMEWORK: The Octet Rule and Its Exceptions

While Lewis electron dot structures help determine bonding in most compounds, there are three general exceptions:

  1.  molecules in which atoms have fewer than 8 electrons (e.g., boron chloride and lighter s- and p- block elements)
  2.  molecules in which atoms have more than 8 electrons (.e.g, sulfur hexafluoride and elements beyond period 3)
  3.  molecules with an odd number of electrons (e.g., NO).

– chemistry.about.comoctect rule.jpg

In your notebooks explain/expand each of the aforementioned exceptions to the octet rule and provide an example for each.

DUE DATE:  Friday 24th

 ( just leave your notebooks on my desk when you come in before or after flag ceremony)

 

Introduction to Ionic and Covalent Bonding

A chemical bond is a force of attraction between atoms that share or transfer electrons. When atoms of different elements bond together, they form a chemical compound, which is a new substance with a fixed ratio of elements. Types of bonds include ionic, covalent, and metallic bonds. The different types of bonds form compounds that have different properties.

– ck12.org

cool-cartoon-3067342.png

We will be learning about ionic, covalent, and metallic bonding during the next few weeks.We will start with ionic bonding and then go on to covalent bonding. Watch the video in the link below and take notes if necessary, it should illustrate and help your understanding of the first two types of bonds.

http://www.schooltube.com/video/7870b1153b034ec08d7a/

QUIZ REVIEW

For quiz  review the following terms:

  • Electron dot structure
  • Alkali metals
  • Alkali earth metals
  • Transition elements
  • Atomic radius
  • Ion
  • Ionization energy
  • Electron affinity
  • Cation
  • Anion
  • Electro negativity
  • Period trends
  • Group trends

QUIZ DATE: Fri.17th