Most of the alkali metals glow with a charlatanistic color when placed in a flam

Question

Most of the alkali metals glow with a charlatanistic color when placed in a flame As a result, a flame test can be used as a qualitative way to identify an unknown metal. Suppose you were asked to identify four unknown samples which are supposed to be one of the following three metals: lithium, sodium and potassium. Based on what year now know about atom size, electron transition within an atom and light emission, which of the following seems the most unlikely. (T8: 8. 8 and 8. 11) a. Compound A is lithium b. Compound A it potassium c. Compound B it sodium d. Compound C it potassium

Explanation / Answer

Option a is correct:

Metal Colour in flame test

Lithium red

Sodium orange
Potassium   lilac

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