Storing electrons from hydrogen for clean chemical reactions

Researchers from Kyushu University have developed a hydrogen energy carrier to address some of the biggest hurdles in the path toward a sustainable hydrogen economy. As explained in a paper published in JACS Au, this novel ...

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Energy level

A quantum mechanical system or particle that is bound, confined spatially, can only take on certain discrete values of energy, as opposed to classical particles, which can have any energy. These values are called energy levels. The term is most commonly used for the energy levels of electrons in atoms or molecules, which are bound by the electric field of the nucleus. The energy spectrum of a system with energy levels is said to be quantized.

If the potential energy is set to zero at infinity, the usual convention, then bound electron states have negative potential energy.

Energy levels are said to be degenerate, if the same energy level is obtained by more than one quantum mechanical state. They are then called degenerate energy levels.

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