Pre-Lab Questions:
What is making the color in a flame test?
The amount of energy and the different type of metal ions that are being used.
What color of light is the Lowest in energy?
The color red is the lowest in the energy
What color of light is the highest in energy?
The color violet is the highest in energy
What color of light is the highest in frequency?
The color violet is the highest in frequency
What color of light is the lowest in frequency?
The color red is the lowest in frequency
In chemistry what is a slat?
In chemistry salt represents an ionic compound
How are electrons "excited"?
Electrons are excited when they are in a higher energy level
What is a "ground state"?
A ground state is when electrons are at the lowest possible energy level
In your own words, write a short explanation of how an electron absorbs energy and re emits it as lights and why different elements have different spectra
When the electrons are introduced to the flame they get "excited" and emit photons. The color of this will be different depending on the frequency.
What is making the color in a flame test?
The amount of energy and the different type of metal ions that are being used.
What color of light is the Lowest in energy?
The color red is the lowest in the energy
What color of light is the highest in energy?
The color violet is the highest in energy
What color of light is the highest in frequency?
The color violet is the highest in frequency
What color of light is the lowest in frequency?
The color red is the lowest in frequency
In chemistry what is a slat?
In chemistry salt represents an ionic compound
How are electrons "excited"?
Electrons are excited when they are in a higher energy level
What is a "ground state"?
A ground state is when electrons are at the lowest possible energy level
In your own words, write a short explanation of how an electron absorbs energy and re emits it as lights and why different elements have different spectra
When the electrons are introduced to the flame they get "excited" and emit photons. The color of this will be different depending on the frequency.
PROCEDURE:
- Place backpacks and bags outside the classroom door
- Put on all required safety gear
- Observe instructor demonstrations
- Ask questions as necessary!
- Determine your roles with your partners
- One of you will wear gloves and be the methanol handler/dishwasher
- The other will be the “Runner” who will gather the compounds for testing as necessary when specified by instructor
- The “runner” will gather the lab tray, while the “methanol handler” gathers gloves (one pair) and 2 lab aprons
- Double-check that you have all materials.
- Make sure shared materials (matches, waste beaker, and hot hands are all accessible to both groups.
Purpose:
Observe the characteristic colors produced by certain metallic ions when vaporized in a flame. Identify unknown metallic ions by means of its flame test.
Data Table:
Observe the characteristic colors produced by certain metallic ions when vaporized in a flame. Identify unknown metallic ions by means of its flame test.
Data Table:
Conclusion:
In conclusion, I thought the experiment was success and everything went as it should. Me and my partner made good observations from the different effects. It was interesting to see the different reactions that each one had.
Discussion of Theory:
When atoms become excited they'll move from the ground state into higher energy levels. Then when they begin to lower back into the ground state again they emit photons of a very specific energy . This energy corresponds to a particular wavelength of light. Each element has their own line emission spectrum which causes there to be different colors.
In conclusion, I thought the experiment was success and everything went as it should. Me and my partner made good observations from the different effects. It was interesting to see the different reactions that each one had.
Discussion of Theory:
When atoms become excited they'll move from the ground state into higher energy levels. Then when they begin to lower back into the ground state again they emit photons of a very specific energy . This energy corresponds to a particular wavelength of light. Each element has their own line emission spectrum which causes there to be different colors.