Download Left Side - Jefferson School District

Chapter 4
Lesson 1
Today You Need:
4.1 Notes handout (glued in on the right side!)
Pencil or pen
3 colored pencils, pens, or highlighters
Right Side
What is Matter?
Anything that has MASS and takes up SPACE
Examples of matter?
The smallest unit of matter is the ATOM
Right Side
“Atom”
From the Greek word atoma, meaning
“INDIVISIBLE”.
Left Side
Think – Write From the Greek word atoma, meaning
“indivisible”.
Using this definition, predict why the atom was
called the atom.
{Complete Sentences!}
My Prediction:
Left Side
Pair – Write
Share with your partner.
Write down their thoughts in a new color.
My Prediction:
My Partner’s Prediction:
Right Side
“Atom”
From the Greek word atoma, meaning
“indivisible”.
Greek Philosopher Democritus could believed
that you could only cut matter up a certain
amount of times before it was too small to be
divided.
Right Side
Parts of the Atom
All Atoms are mostly EMPTY SPACE
surrounding a tiny NUCLEUS.
“subatomic particles” – particles that are
SMALLER than an atom
There are 3 main subatomic particles.
Protons, Neutrons, Electrons
Right Side
Protons
Use your first color to highlight or shade
behind the word “Protons” on your handout.
Symbol: P+
Charge: + 1
Mass ~ 1 amu
Left Side
Units
What units do we use for measuring distance?
What units do we use for measuring mass?
Right Side
Left Side
Units
What units do we use for measuring distance?
Inches, centimeters, miles, kilometers,
yards…
What units do we use for measuring mass?
Pounds, ounces, grams
amu: ATOMIC MASS UNIT = for measuring
mass
Right Side
Neutrons
Use your 2nd color to highlight or shade
behind the word “Neutrons” on your
handout.
Symbol: N
Charge: 0 (Neutrons are Neutral)
Mass ~ 1 amu
Right Side
Electrons
Use your 3rd color to highlight or shade
behind the word “Electrons” on your
handout.
Symbol: e-
Charge: - 1
Mass ~ 0 amu
Right Side
AMU repeat
What is amu?
Atomic mass unit
Use to measure mass of subatomic particles.
Left Side
Create a Chart
Create a chart that shows the symbol, charge,
and mass (amu)
Left Side
Create a Chart
Create a chart that shows the symbol, charge,
and mass (amu)
Particle
Symbol
Charge
Mass (amu)
proton
P+
+1
1
neutron
N
0
1
electron
e-
-1
0
Lithium Atom:
3P+, 4N, 3 eUse your 3 colors:
1 color for Protons, P+
2nd color for Neutrons, N
3rd color for electrons, e-
Right Side
Left Side
Draw a new atom
Draw Berylium, Be
Be has 4 protons, 4 electrons, and 5 neutrons.
Don’t forget to color-code the subatomic
particles.