Download Handout 1 Part 1 – Atoms Procedure: Place 22 yellow fruit loops and

Handout 1
Part 1 – Atoms
Procedure:
1. Place 22 yellow fruit loops and 18 green fruit loops in a small mound. The structure of
the atom you are now modeling is the nucleus!
2. Take 3 pieces of string to make 3 circles around your nucleus. The structures of the atom
you are now modeling are the electron shells or energy levels!
3. Place 2 red fruit loops on the first circle, then 8 red fruit loops on the second, and finally
8 red fruit loops on the third circle.
4. Draw a picture of your atom model:
Concept Questions:
What are your model’s atomic number, atomic mass, chemical symbol, chemical name, and
overall charge? (Consult Periodic Table of the Elements)
Part 2 Atoms
1.
2.
3.
4.
5.
Place 16 yellow fruit loops and 15 green fruit loops in a small mound.
Take 3 pieces of string and make 3 circles around your nucleus.
Take 15 red fruit loops.
Place 2 red fruit loops on the first circle.
Place the remaining fruit loops onto the next energy levels (be sure that you don’t add
more than 8 electrons per energy level!).
6. Draw a picture of your atom model:
What are your model’s atomic number, atomic mass, chemical symbol, chemical name, and
overall charge? (Consult Periodic Table of the Elements)
Part 3
1. Place 12 yellow fruit loops and 12 green fruit loops in a small mound. Take a piece of
string and surround your mound. Then, moving outward from the first circle and mound,
place two more circles.
2. On the first circle place 2 red fruit loops. Continue placing red fruit loops (total number
of electrons is equal to the number of protons) onto the next energy levels until you run
out of fruit loops (make sure they don’t exceed 8 fruit loops per electron shell!).
3. Draw a picture of this new model. Write down the number of protons, electrons, and
neutrons.
Number of protons = ______
Number of electrons = ______
Number of neutrons = _____
4. Write down the atomic number, atomic mass, chemical symbol, chemical name, and
overall charge.
Part 4
1. Look at the Periodic Table of the Elements and locate Chlorine (Atomic Number 17).
2. Using your three different color fruit loops and string, create a model of the chlorine
atom:
3. Write down the atomic mass, chemical symbol, number of neutrons, and overall charge.
Part 5
Procedure:
1. In a small mound, place 11 yellow fruit loops and 11 green fruit loops with a circle of
string surrounding it. On the first circle place 2 red fruit loops, on the second circle place
8 red fruit loops, and on the third circle place only 1 red fruit loop.
2. Draw a picture of your model:
3. Show how 1 electron in the third shell leaves the atom, but joins the outermost shell of a
chlorine atom (which has 7 electrons)
???
Chlorine
4. After the electron leaves, what are the original atom’s atomic number (Hint: look at the
number of protons), atomic mass, chemical symbol, chemical name, and overall charge?
5. Draw a new picture of your model. What does it look like if it’s connected to another
atom?
Sodium Chloride
6. After the electron reaches the outer energy level of the Chlorine atom, now what are the
Chlorine’s atom’s atomic number, atomic mass, chemical symbol, chemical name, and
overall charge?
Part 6
Procedure:
1. In a small mound, place 6 yellow fruit loops and 6green fruit loops with a circle of string
surrounding it. On the first circle place 2 red fruit loops, and on the second circle place 4
red fruit loops.
2. Draw a picture of your model:
3. In a small mound, place 8 yellow fruit loops and 8 green fruit loops with a circle of string
surrounding it. On the first circle place 2 red fruit loops, and on the second circle place 6
red fruit loops.
4. Draw a picture of your model.
5. Using the help of 1, 2, 3 and 4 draw a new picture of your model. What does it look like
if the atoms are connected?
[Clue: The atoms share electrons instead of losing or gaining electrons. Use two oxygen
atoms and one carbon atom to form one molecule of carbon dioxide].
carbondioxide
6. After the electrons are shared through the outer energy levels of the carbon and oxygen
atoms, write the chemical formula of the compound.