Using the hydrogen spectrum,explain method involved in the excitation of atom
Answers
Learning Objective
Calculate emission spectra for Hydrogen using the Rydberg formula
Key Points
The wavelengths in a spectral series are given by the Rydberg formula.
The observed spectral lines are due to electrons moving between energy levels in an atom.
Further series are unnamed but follow exactly the same pattern as dictated by the Rydberg equation.
Terms
spectrumA range of colors representing light (electromagnetic radiation) of contiguous frequencies; hence electromagnetic spectrum, visible spectrum, ultraviolet spectrum, etc.
emissionIn a spectral sense, what occurs when an electron transitions between a higher energy level and a lower one, resulting in the release of a photon of predictable energy.
The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted by an atom’s electrons when they are returned to a lower energy state. Each element’s emission spectrum is unique, and therefore spectroscopy can be used to identify elements present in matter of unknown composition. Similarly, the emission spectra of molecules can be used in chemical analysis of substances.