Purpose: To determine the name of the element by counting the number of
chocolate chips in a cookie. The number of chocolate chips in the cookie
will equal the number of protons of the atom.
Purpose: To determine the name of the element by counting the number of
chocolate chips in a cookie. The number of chocolate chips in the cookie
will equal the number of protons of the atom.
Materials: one chocolate chip cookie, plate, periodic table, toothpick
Materials: one chocolate chip cookie, plate, periodic table, toothpick
Procedure:
1. Break the cookie into pieces and extract the chocolate chips from the
cookie material. (Note: broken pieces will need to be placed together
to form a whole piece for the purposes of counting.)
2. Count the number of chocolate chips in the cookie.
3. Find the element in the periodic table that has an atomic number equal
to the number of chocolate chips.
4. Fill in the chart below.
Procedure:
1. Break the cookie into pieces and extract the chocolate chips from the
cookie material. (Note: broken pieces will need to be placed together
to form a whole piece for the purposes of counting.)
2. Count the number of chocolate chips in the cookie.
3. Find the element in the periodic table that has an atomic number equal
to the number of chocolate chips.
4. Fill in the chart below.
Data Table:
Number of Chocolate Chips (Protons)
Data Table:
Number of Chocolate Chips (Protons)
Atomic Number
Atomic Number
Element Name
Element Name
Element Symbol
Element Symbol
Atomic Mass
Atomic Mass
Number of Electrons
Number of Electrons
Numbers of Neutrons
Numbers of Neutrons
Analysis:
Analysis:
1. How many different elements did your group have?
2. How can you tell which element is which?
3. Differentiate between protons, neutrons, and electrons.
1. How many different elements did your group have?
2. How can you tell which element is which?
3. Differentiate between protons, neutrons, and electrons.