Parts of an
Atom
Nucleus
Electron Clouds
Bell Work 10-27-14
Write the question, answer, and justify!
1
Bell Work Answer
Word Wall Words- Quiz Friday!
Add these in the back of your SNB in the
vocabulary section.
11. Mixture- combination of two or more
substances that are not chemically combined.
12. Solution- a homogeneous mixture of two or
more substances uniformly dispersed
throughout a single phase.
13. Solute- in a solution, the substance that
dissolves in the solvent
14. Solvent- in a solution, the substance in
which the solute dissolves.
15. Suspension- a mixture in which particles of a
material are more or less evenly dispersed
throughout a liquid or gas.
Student Learning Objectives:
EQ: Do I recognize that all matter consists
of atoms? (SPI0807.9.1)
TOC:
#45. Atom’s Family
#46. Atoms Foldable
#47. Candy Atoms
45. Atom’s Family
1st Verse:
They’re tiny and they’re teeny,
Much smaller than a beany,
They never can be seeny,
The Atoms Family.
Chorus
2nd Verse:
Together they make gases,
And liquids like molasses,
And all the solid masses,
The Atoms Family
Chorus
3rd Verse:
Neutrons can be found,
Where protons hang around;
Electrons they surround
The Atoms Family.
Chorus
Chorus:
They are so small.
(Snap, snap)
They’re round like a ball.
(Snap, snap)
They make up the air.
They’re everywhere.
Can’t see them at all.
(Snap, snap)
46. Atoms Foldableoutside
Atoms
Neutrons
Protons
Electrons
Atoms Foldable- Inside
Atoms- The smallest unit that
an element can be divided into
and still be the same substance.
Isotopes- the same number of protons
but have different numbers of
neutrons. (Isotopes are the same as
the Mass #)
Atomic Mass= #Protons + #Neutrons
Atomic Number= # Protons
Neutrons- Neutral particle
NO charge (0)
•Inside the nucleus
•½ of atom’s mass
•Keeps protons together
•Neutrons= Atomic mass- Atomic #
Protons- Positively Charged (+)
•Inside the nucleus
•The other ½ of atom’s mass
•#Protons= Atomic #
(Element’s Identity)
#Protons= #Electrons
Electrons- Negatively Charged (-)
•Outside the nucleus in the electron
cloud
•No effect on atom’s overall atomic
mass.
•Responsible for ability to form
bonds.
Student Demo
Protons (+)
Neutrons (0)
Electrons (-)
Make a connection!
How Do Atoms of Different
Elements Differ?
Discuss with your elbow partner!
Element Connection!
For example:
• The hydrogen atom has 1 proton and 1
electron.
• The helium atom has 2 protons, 2
neutrons, and 2 electrons.
• For bigger atoms, simply add protons,
neutrons, and electrons.
Atoms
Example:
Boron Atom
Atomic Mass – 11
Atomic Number – 5
# of Protons - 5
# of neutrons - 6
# of electrons - 5
Bohr Model
Key:
Proton
Neutron
Electron
47. Candy Atoms- Skittles
Materials:
•
Skittles: red, yellow, and orange
•
Coffee filter
•
Periodic Table
•
SNB
Your task:
1. Use the Periodic Table to
arrange the Skittles on your
coffee filter for the number of
protons, neutrons, and electrons.
2. Use the BLUE cup to show that
your group is finished and let me
check.
3. Once your group has been
checked, draw each in your SNB.
4. DO NOT EAT the candy until
directed by me!
KEY:
Red – Protons
Yellow – Neutrons
Orange – Electrons
Elements:
Hydrogen
Carbon
Helium
Nitrogen
Lithium
Neon
Candy Atoms
Hydrogen
#P-1
#N-0
#E-1
Carbon
#P-6
#N-6
#E-6
Lithium
#P#N#E-
Helium
#P-2
#N-2
#E-2
Neon
#P#N#E-
Nitrogen
#P-7
#N-7
#E-7
Exit Ticket
1. What are atoms? Where are they found?
2. Compare and contrast protons, neutrons,
and electrons. Give examples.
Practice with Protons, Neutrons,
Electrons, Mass #, Atomic #
Directions:
At your groups, you have a large
Bohr Model.
You will also have circles to
represent protons(+),
neutrons(0), and electrons(-).
Your group will use the
information given about
certain elements and show a
model of each element.
1.Use the Element cards at your
group and show the number of
electrons, neutrons, and
electrons for each element.
2. Use circles to represent the
particles in the atom. (Use 3
different colors to represent the
atom particles)
Protons
Neutrons
Electrons
Nucleus
Nucleus
Electron Cloud