INTERNAL CONVERSION Meaning and
Definition
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Internal conversion is a process that occurs in physics and chemistry where an excited atomic or molecular state transitions to a lower energy state without emitting any photons. This phenomenon is often observed in systems where an electron jumps between different energy levels within an atom or molecule, resulting in the release of energy.
During internal conversion, instead of emitting a photon, the excess energy is transferred to the surrounding medium, such as the atomic nucleus or nearby electrons. This energy transfer causes the atom or molecule to transition to a lower energy state, returning to its ground state or a less excited state.
The internal conversion process is distinct from other forms of energy dissipation, such as fluorescence or phosphorescence, where the excess energy is released as photons. In contrast, internal conversion occurs through interactions within the system itself, without the involvement of electromagnetic radiation.
This process is of great interest in fields such as atomic and molecular physics, as well as in the study of radioactive decays. Understanding internal conversion is crucial for accurately analyzing and characterizing the behavior of excited states and the energy transfer mechanisms that take place within atoms and molecules.
In summary, internal conversion is a non-radiative process that occurs when an excited state in an atom or molecule loses energy through interactions with the surrounding medium, rather than emitting photons.
Etymology of INTERNAL CONVERSION
The word "internal" comes from the Latin word "internus", which means "interior" or "within". The word "conversion" comes from the Latin word "conversio", which means "change" or "transformation". Therefore, the term "internal conversion" refers to a change or transformation that occurs within something or someone, specifically in the context of physics or chemistry.
