Introduction to Particles 10/1/13

ACTIVITY: classify the diagrams in as many ways as possible to explain each classification system used e.g. by sizes, colours, bonded or unbonded etc..

Grp members: Annette, arika and me. (Group 4)
We grouped the particles according to their size and whether they were conjoined or in twos. Also, we tried identifying the criteria used by the other two groups to group the particles.

Class discussion: Questions to think about

1) Which one(s) do you think comes from the same type of substance? Why?
- same size particles.

• different types of particles bond together -> same type of particles

• different types of particles DONT bond -> different type type particles

2) Which two do you think come from the same substance? Why?
- same size
- same colour

3) Which one(s) is/are gases? Why?

Gas particles-> particles that are far apart.

• The forces of attraction between gas molecules is too weak for them to mantain any kind of definitive shape.
•   Indefinite shape and volume.

4) What do you think each particle represent?

                           Particles 
                 atoms                 Molecules
                 (single)                (two/three)
                   O                       oo


F particles occupy more space than M = higher density.

VS

Of equal space, F particles (on the left) occupies more space than M particle( on the right).


Atoms Useful link