Last updated 9-15-08
<-Building Blocks <-CHM130 <-CHM107

C3: Elements built from
Protons, Neutrons, and Electrons
QUIZ

#1: From the salad, you are acquainted with the building blocks for the elements at a personal level. Match the atomic particle to the correct sense.

1. Protons

2. Electrons

3. Neutrons.

Senses: Sight, Taste, Pressure (from weight)
#2. A fundamental law about charges is demonstrated in this static electricity picture. Electrons move up to the girls hair and then the hair separates. What can you say about the force that electrons have on other electrons?
#3. In the picture of the helium atom to the right, we see the electrons staying away from each other, but the protons (+) seem to disobey the rule about like charges repelling. How is it that protons will sit up against each other in the nucleus of an atom?
#4: Below are five ways of representing the carbon atom and its electrons. Each way has its own strength.   4a) What do "A" and "E" drawings show?   4b) "B" and "C" are similar, but what is their difference?   4c) "D" also shows carbon's four outer electrons, but this drawing has an advantage. What is it?
#5. The biggest factor regarding elements' behavior comes from the outer electrons. In the picture we see three fluorine atoms ready to combine with carbon. What do you think the neon atom will do, since it has eight outer electrons?
<-Building Blocks <-CHM130 <-CHM107

Since Sept 29, 2004