Sentence examples for two or three electrons from inspiring English sources

Usually, iron loses two or three electrons.

The equation can be solved exactly for an atom containing only a single electron (hydrogen), and very close approximations can be found for atoms containing two or three electrons (helium and lithium).

They typically result from the excitation of O2 to form singlet oxygen (O-) or from the transfer of one, two or three electrons to O2 to form, respectively, a superoxide radical (O2-), hydrogen peroxide (H2O2) or a hydroxyl radical (HO-) [ 37].

An important characteristic of the nitrogenase reaction is that substrates can bind only to forms of the MoFe-protein reduced by two or three electrons relative to the "as-isolated" form, which can be efficiently generated only in the presence of the reduced Fe-protein and ATP.

Depending also on the experimental conditions, two or four electrons are transferred per oxygen molecule.

Koutecky-Levich plots and rotating ring-disk electrode experiments revealed distinct oxygen reduction mechanisms for the nanostructured Co or Fe porphyrin modified electrodes, with the transfer of two or four electrons to form hydrogen peroxide or water, respectively.

The reduction reactions that may be involved in the cathode chamber are described as follows (Menek and Karaman 2005), in which the –N = N– double bond was reduced to hydrazo (A) or amine (B), via the consumption of two or four electrons.

The calculated threshold intensity between the first and 0.5th-order light-intensity dependences for FB-BWO was appreciably lower than that of ML-BWO, suggesting that the higher FB-BWO activity is attributable to the larger effective particle size for accumulation of two (or four) electrons.

Argon and krypton atoms that have been stripped of one or two electrons can generate milliwatts to watts of laser light at visible and ultraviolet wavelengths.

Although the transfer of four electrons and four protons reduces oxygen to water, which is harmless, transfer of one or two electrons produces superoxide or peroxide anions, which are dangerously reactive.

The biochemical basis for the toxicity of oxygen is the partial reduction of oxygen by one or two electrons to form reactive oxygen species, which are natural by-products of the normal metabolism of oxygen and have important roles in cell signalling.