Why alkali metals are analysed by flame emission spectroscopy?
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The basis of flame photometric working is that, the species of alkali metals (Group 1) and alkaline earth metals (Group II) metals are dissociated due to the thermal energy provided by the flame source. Due to this thermal excitation, some of the atoms are excited to a higher energy level where they are not stable.
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Due to thermal energy given by the source so that emissions takes place
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