Let there beConsider an atom in the excited state with a spin equal to 1, so it, radiating a photon, and goes to the state with zero spin at lower energy state. But photons that have a certain angular momentum, the momentum itself is not defined. In this case, will there be a recoil of the atom due to photon emitted?
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Grammar correction , statement containing spin 1 and spin 0 of an atom is meaning less
