You are watching: Can a flame test be used to identify a metal atom in a compound
2. What does words "emit" mean?The indigenous "emit"means come basically, give off, relax or radiate a specific substance or something.3. In this experiment, where are the atoms gaining their excess energy from?The atoms in this experiment are getting their excess power from the warmth of the burning gas indigenous the bunsen burner. The warmth is a form of power the electron in the atom space able to use to walk to the excited state.4. Why do different atoms emit various colors of light?Different atom emit various colors the light because when the electrons end up being excited, they run to higher levels which deserve to differ from atom come atom and also when they relax down into their initial positions lock can give off different amounts of energy which makes various colors. Top top the spectrum, different quantities of power represent different colors varying from violet come red therefore the atoms can create different colors.
In conclusion, we were able to quickly and successfully complete the lab with precise results. Although this lab was fairly simple to test, us were tho able to take good observations that the various flame colors which allowed us to predict the two unknown solutions.
2. What patterns do you an alert in the groupings?A pattern we noticed is that details elements/metal ion correspond to particular colors. An instance of this would certainly be that every one of the solutions with copper in them finished up transforming the fire a blue/green color. This makes sense since when they room heated up, the electrons room the very same so their relax of light, when dropping from their excited state come ground state, have to be the very same color.
3. Suspect the flame shade for a substance dubbed strontium sulfate. Describe your reasoningThe flame color for strontium sulfate would certainly most most likely by some sort of reddish orange color since strontium chloride melted this color and also as we claimed before, the steel tends to decision the shade of the flame.
The evidence that we have is that when certain metals were placed over the flame, they had the same form of color. As we mentioned before, copper constantly had a blue/green color and also sodium always was an orange color. This renders sense because they are the very same atom for this reason the electrons have to jump come the same greater levels of power which method they will certainly be similar flames.
5. Have the right to a flame test be used to recognize a metal atom in a compound? Why or why not? What around a nonmetal atom?
Yes, many of the time a flame test can be used to determine a metal because when the metals were burned, they almost always had the same color or at least a similar color declared above. Because that nonmetal atoms this is not the case due to the fact that during the experiment there was no correlation between nonmetal and also color. This can make sense due to the fact that because the steel ions i beg your pardon are an adverse need to obtain an extra electron in stimulate to come to be neutral therefore they have to emit power in bespeak to do so. Nonmetal ions on the various other hand currently have at least one much more electron than they require so castle must loosened an electron in bespeak to carry out so. This would should be excellent by soaking up the energy and also not create it.
Unknown 1 is LiCl and Unknown 2 is KCl. We recognize this since when they to be burned and also given the extra energy, there color matched these 2 compounds which way that they must be the same.Unknown 1 and also LiCl had actually the very same distinct shade of pink if unknown 2 and KCl had the same color of a darker purple. The nonmetal ions can"t for sure be identified because they do not beat a part in emitting a color.
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7. Copper oxide, CuO, is a black color solid. The doesn"t look in ~ all choose the facet copper. What color flame would it produce?The flame color copper(II) oxide would produce would certainly be a blue/green since all steel ions tend to emit the same shade when burned. The nonmetal ion doesn"t really play a part in offering off shade so we known that the oxygen doesn"t yes, really matter. This does not only make sense due to the fact that it is the very same electron configuration yet we experiment in the lab through three various samples/solutions that had copper in castle which all burned to it is in a blue/green.