NAME:_______________________
3.3 What are the subatomic particles?
DATE:____________
AHS Instructor Ms. Kasia Room 109/110
UNIT 3 ATOMIC CONCEPTS
3.3 What are the subatomic particles?
AIM:
DO NOW: Based on our study of the ATOMIC THEORY, draw an atom the way you understand it.
Your Atom Version 1
REVIEW: ATOM
Shape?
Your Atom Revised Version
Dense?
THREE MAJOR SUBATOMIC PARTICLES
Proton
Label your proton with as much information as you can:
Neutron
Label your neutron with as much information as you can:
Electron
Label your electron and energy levels with as much information as you can:
Size?
Nucleus
Label your nucleus with as much information as you can:
Contains?
Dense?
Diameter?
Mass?
Directions: Use the information from the notes to fill the chart.
Subatomic Particle
Protons
p+
+
p
Neutrons
N0
p+
Where are they
found?
p+
Mass
Charge (attitude)
Draw a simple model of the Atom (label it)
Electrons
NAME:_____________________________
DATE:__________
3.3 Independent Practice
AHS Instructor Ms. Kasia Room 109
UNIT 3 ATOMIC CONCEPTS
3.3 What are the subatomic particles?
1. Describe the structure of a typical atom. Identify where each subatomic particle is located (verbally or
visually).
2. Compare and contrast JJ Thomson’s Plum Pudding Model with Rutherford’s nuclear atomic model.
3. A student constructs a model for comparing the masses of subatomic particles. The student selects a
small, metal sphere with a mass of 1 gram to represent an electron. A sphere with which mass would
be most appropriate to represent a proton?
a. 1g
b. ½ g
c. 1/2000 g
d. 2000g
4. How did you arrive at your answer to #3?________________________________________________
_____________________________________________________________________________________
5. Which statement correctly describes the chare of the nucleus and the charge of the electron cloud of an
atom?
a. The nucleus is positive and the electron cloud is positive.
b. The nucleus is positive and the electron cloud is negative.
c. The nucleus is negative and the electron cloud is positive.
d. The nucleus is negative and the electron could is negative.
6. How did you arrive at your answer to #5?_________________________________________________
_____________________________________________________________________________________
7. A proton has a mass that is opposite the charge of______________________________________________