You are watching: Can a flame test be used to identify a metal atom in a compound
2. What does the word "emit" mean?The word "emit"suggests to basically, provide off, release or radiate a particular substance or somepoint.3. In this experiment, where are the atoms getting their excess power from?The atoms in this experiment are acquiring their excess power from the warm of the burning gas from the bunsen burner. The warm is a type of energy the electrons in the atom are able to use to go to its excited state.4. Why execute different atoms emit different colors of light?Different atoms emit various colors of light bereason as soon as the electrons become excited, they jump to greater levels which deserve to differ from atom to atom and also as soon as they relax down into their original positions they have the right to give off different amounts of energy which provides different colors. On the spectrum, different amounts of energy represent various colors varying from violet to red so the atoms deserve to create various colors.
In conclusion, we were able to easily and also properly finish the lab with precise outcomes. Although this lab was reasonably simple to test, we were still able to take excellent observations of the various flame colors which allowed us to predict the two unrecognized services.
2. What patterns execute you alert in the groupings?A pattern we noticed is that particular elements/metal ions correspond to certain colors. An instance of this would be that all of the options via copper in them finished up turning the flame a blue/green color. This makes sense bereason as soon as they are heated up, the electrons are the very same so their release of light, as soon as dropping from their excited state to ground state, should be the same color.
3. Predict the flame shade for a substance called strontium sulfate. Explain your reasoningThe flame color for strontium sulfate would most likely by some sort of reddish ovariety color because strontium chloride melted this color and also as we said before, the metal has a tendency to decide the color of the flame.
The proof that we have actually is that once particular metals were placed over the flame, they had the same type of shade. As we discussed prior to, copper constantly had actually a blue/green color and also sodium constantly was an orange color. This makes feeling bereason they are the same atom so the electrons have to jump to the very same greater levels of power which indicates they will be similar flames.
5. Can a flame test be offered to recognize a metal atom in a compound? Why or why not? What around a nonmetal atom?
Yes, the majority of of the moment a flame test deserve to be supplied to determine a metal bereason when the metals were shed, they practically constantly had the same color or at leastern a comparable color stated over. For nonsteel atoms this is not the instance bereason throughout the experiment tright here was no correlation between nonsteel and shade. This might make sense bereason bereason the metal ions which are negative should acquire an added electron in order to come to be neutral so they need to emit energy in order to perform so. Nonmetal ions on the other hand also already have actually at least one more electron than they require so they need to loose an electron in order to execute so. This would certainly should be done by taking in the power and not emitting it.
Unrecognized 1 is LiCl and also Unwell-known 2 is KCl. We know this because as soon as they were shed and offered the extra energy, tright here shade matched these two compounds which implies that they must be the exact same.Unrecognized 1 and LiCl had actually the very same distinct shade of pink while unwell-known 2 and KCl had actually the exact same shade of a darker purple. The nonmetal ions can not for certain be determined bereason they carry out not play a component in emitting a color.
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7. Copper oxide, CuO, is a babsence solid. It doesn"t look at all favor the facet copper. What color flame would certainly it produce?The flame shade copper(II) oxide would create would certainly absolutely be a blue/green bereason all steel ions tfinish to emit the very same shade when melted. The nonsteel ion doesn"t really play a part in providing off shade so we known that the oxygen does not really matter. This does not only make sense because it is the very same electron configuration however we tested in the lab via 3 various samples/remedies that had copper in them which all shed to be a blue/green.