0
The colour of a flame can be used to work out which metal is present in a compound. This is called a flame test.
Sodium - Yellow/orange
Potassium - Lilac
Lithium - Crimson
Copper - Green
Calcium - Orange/Red
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoWhen elements are put in a flame, they exhibit different colors depending on the electronic configuration of the element. This results because the molecule absorbs energy from the flame, and releases it as visible wavelengths of radiation. The light corresponds of an electron dropping from its excited state into a lower energy state.
Wiki User
∙ 8y agoTransition of electrons between different energy levels release photons.
Add your answer:
Earn +20 pts
What does the flame test tell you about chemicals?
With the flame test we can identify some chemical elements; see the link to Wikipedia, for ex.
What does the flame test give off to identify a substance?
The color of the flame test is specific for some metals. See the link below.
How can you test to see if there is oxygen in a test tube?
Light a splint on fire, and then blow the flame out. You want your splint to be glowing red. Then, simply put the splint into the mouth of the the test tube, and if your splint re-lights up into a flame, you'll know it's oxygen gas.
Why do you think the chemicals have to be heated in the flame first beforen the colored light is emitted?
The heat energy in the flame moves the metal atoms in the chemicals to a higher energy. When they reach the ground state which is there original position they give back their absorbed energy in the form of visible light.
Does the flame of the gas stove give light of visible wavelength?
Certainly; you can see the light that it gives off.
Why does magnesium not produce a color in the flame test?
it does not produce a flame colour because magnesium's colour is not in the visible light spectrum therefore we can not see the colour
What does the flame test tell you about chemicals?
With the flame test we can identify some chemical elements; see the link to Wikipedia, for ex.
What does the flame test give off to identify a substance?
The color of the flame test is specific for some metals. See the link below.
Why is flame test very not accurate?
A flame test is not very accurate because the other chemicals that you are testing will fall into your Bunsen burner creating a contaminated flame. Therefore you may see mixed colorations in the flame and get a negative reading for your chemicals color
Why does an element give off light of a particular colorwhen flame test is being conducted?
This is because each element has different photons (bundles of light) it gives off during reaction or energy transfer. For example, lithium has primarily red photons, so you see a lithium flame as red.
How can you test to see if there is oxygen in a test tube?
Light a splint on fire, and then blow the flame out. You want your splint to be glowing red. Then, simply put the splint into the mouth of the the test tube, and if your splint re-lights up into a flame, you'll know it's oxygen gas.
Why do you see colors in flame tests?
When an atom is in the flame, an electron in the outer shell of that atom receives energy from the flame and jumps up to a higher shell position. This electron then falls back to is original position and in doing so emits a photon of light of a specific energy. You see this light as a color. Atoms from different elements have different numbers of electrons in their electron shells so the photons emitted as these electrons jump back are all of different energy and therefore emit light of a different color. The color of the flame in the flame test therefore helps to identify the element in the flame producing the colored light.
Why do you think the chemicals have to be heated in the flame first beforen the colored light is emitted?
The heat energy in the flame moves the metal atoms in the chemicals to a higher energy. When they reach the ground state which is there original position they give back their absorbed energy in the form of visible light.
Does the flame of the gas stove give light of visible wavelength?
Certainly; you can see the light that it gives off.
Is there a way to test to see if it is potassium nitrate or ammonium nitrate?
Flame test. Dip a piece of platinum wire into concentrated nitric acid, and then roll it in the sample. Put the wire over a Bunsen flame. If a lilac flame is observed, it is potassium nitrate.
Can you see the flame if the pilot light is on?
Generally, yes. If the area is especially bright, it may be difficult to see.
What a meaning of stem?
See Esteem., See 1st and 2nd Stem., To gleam., A gleam of light; flame.
