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What Color Is The Flame

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

What Color Is The Flame

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