Transcript lab 14B - atomic challenge

Pre-Lab 14B: Atomic
Challenge
Purpose
• During the middle ages, people believed
you could turn lead into gold if you followed
the right procedures.
• Later, we learned that lead and gold are
different elements with different kinds of
atoms.
• You have to change the atoms inside to
make lead into gold.
• Lead atoms have 82 protons in the nucleus.
Gold atoms have 79 protons.
Key Question
• How were the elements created?
Background
Define:
isotope
ion
atom
Drawing
Section 2:
Read the 3 rules
About 13 billion years ago, when the universe was much
younger, the only atoms in existence were hydrogen,
helium, and a small amount of lithium. These are the
three lightest elements.
Today, we find carbon, oxygen, iron, and even uranium
atoms. Where did these heavy atoms come from?
All the elements were created in the super-hot cores of
stars. Stars get their energy by combining hydrogen
atoms together to make other elements, such as
helium.
Along the way, a few protons get converted into
neutrons and electrons.
In this investigation, you will learn how these subatomic
particles are arranged to make up the structure of an
atom by playing the game of Atomic Challenge.
Section 3:
This game simulates how the heavy elements were created inside
stars.
• The winner of the game is the first player to run completely out
of marbles.
• Each player takes turns adding 1 - 5 marbles, but not more
than 5
• match one of the naturally occurring elements: all the isotopes
listed may be used
• If it’s NOT on the red periodic table you have to take your
marbles back and lose your turn.
• A player can trade marbles with the bank INSTEAD of taking a
turn
• Complete 2-3 games.
• WINNERS GET EXTRA CREDIT!!!
• Have Mr. Speich sign-off each lab for each game.
Post Lab 14B: Atomic
Challenge
Purpose
• During the middle ages, people believed
you could turn lead into gold if you followed
the right procedures.
• Later, we learned that lead and gold are
different elements with different kinds of
atoms.
• You have to change the atoms inside to
make lead into gold.
• Lead atoms have 82 protons in the nucleus.
Gold atoms have 79 protons.
Key Question
• How were the elements created?
Background
Define:
isotope
ion
atom
a. What four elements make up almost all of
the mass in your body?
b. How many stable isotopes does oxygen
have?
c. Find one element on the chart that has
no stable isotopes.
d. What element has atoms with 26 protons
in the nucleus?
e. On most periodic tables, a single atomic
mass is listed instead of the mass
numbers for all the stable isotopes. How is
this mass related to the different isotopes?