Answer Posted / kalyan mali
FES is a form of emission spectroscopy in which heat
energy is provided to a sample through use of a flame. This
energy is absorbed by the sample by promoting its electrons
to a higher energy level.After a short period of excitation
the electrons drop back to their previous, more stable
state known as the ground state and the absorbed energy is
emitted in the form of quanta (hu). This emmited energy is
different for different atoms ,& is recorded by ditector to
identify molecule or atom .
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