Notes Features of alkali spectra The spectra of alkali metals exhibit several distinct features due to their electronic structure. Alkali metals are found in Group 1 of the periodic table, and include elements like lithium ...
Notes Diatomic molecule as non rigid rotator In molecular physics and chemistry, the model of a diatomic molecule as a non-rigid rotator provides insight into how the molecule's rotation affects its energy levels. This model is an ...
Notes Broadening of spectral line It has been observed that no strictly sharp spectral lines have been observed. It has a fixed width that depends on the reserving power of the optical instrument by which ...
Notes Paschen-Back effect The Paschen-Back effect refers to the splitting of spectral lines in the presence of a strong magnetic field, which causes the energy levels of atoms or ions to change. This ...
Notes Hyperfine structure constant Hyperfine structure is a phenomenon observed in the atomic spectra of certain elements where energy levels that would otherwise be degenerate (have the same energy) are split due to the ...
