1. Section III: A World of Particles
Lesson 11 Atomic Pudding
Lesson 12 Atoms By Numbers
Lesson 13 Subatomic Heavyweights
Lesson 14 Isotopia
Lesson 15 Nuclear Quest
Lesson 16 Old Gold

2. Lesson 11: Atomic Pudding
Models of the Atom
(start on a new RIGHT side
and add to table of contents)

3. Key Question (right side)
How are the smallest bits of matter described?
Objectives:
describe the development of the current atomic model
describe and draw an atomic model

4. Lesson 11 notes: (right side)
Atom: The smallest unit of an element that retains the chemical properties of that element.

5. Notes (cont.)
Do not copy
The Atomic Model Through Time

6. Notes (cont.)
a.) Models of the atom changed as new evidence was gathered
Current Model of the atom:
Know this!!

7. Notes (cont.) b.) Parts of an atom Nucleus: Center of atom
Contains protons and neutrons
VERY small, very dense
Proton:
Positive (+) charge
Found in nucleus
Neutron:
NO charge or neutral (0)

8. Notes (cont.) Electron: Negative charge (-) Smallest particle
Move very fast around the outside of the nucleus

9. Check-in 11 Here is a model of a carbon atom.
1. List two things this model tells you about the carbon atom.
2. List something this model does not tell you about the carbon atom.