What Color Is The Flame

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Procedure Points
Score = ______/ 20 points
4 –
3 –
2 –
1 –
Name __________________________ Period __________
What Color is the Flame?
Today we will be “burning” elements that are in solution to see what color flame is produced.
When finished, we will try and determine how the information from the periodic table might be used to
help explain why different elements create different colored flames. Make sure to follow the exact
instructions for this lab as you test each element below and do not misplace the wires or burn the wooden
holders!
Procedure
1) Make sure to keep all 5 wires in the proper solutions as you test the elements! Each test tube
should be labeled #1 to #5 and corresponds to the data in the table below.
2) Carefully light your Bunsen burner and make sure you have a blue flame with a blue cone
inside.
3) Start with solution #1 – Barium and carefully hold the loop of the wire in the side of the flame
for 1-2 seconds. Do not allow the wire to overheat.
4) Record the color of the flame that you initially see and repeat for the other elements.
Data – (1 pt per element)
Element
Symbol
# of Valence
Period # on the
Color During
Electrons
Periodic Table
Flame Test
#1 – Barium
#2 – Strontium
#3 – Lithium
#4 – Potassium
#5 – Sodium
Testing Unknowns – (1 pt per unknown)
1) Write down the letter of your unknown.
2) Take the wire from the “Sodium” sample and dip it into the bottle labeled “HCl,” then place in
the flame to decontaminate the wire.
3) Dip the wire into an unknown sample then test it in the flame as performed above.
4) Compare the color to the 5 elements you have already tested and identify it.
Unknown Letter
Color of Flame Test
Identity of Unknown

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