electrons and quarks. In order for that to work, string theory has to make one more radical assumption. That instead of living in a universe with three dimensions of space and one of time ...

However, phosphorus has five electrons, and when combined ... p-type silicon is said to have a positive charge. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

The British physicist Paul Dirac started the ball rolling in the late 1920s with his equation describing how relativistic electrons – and with it most other matter particles – behave.

Two-dimensional materials are substances with a thickness of a few nanometres or less. Electrons in these materials are free to move in the two-dimensional plane, but their restricted motion in ...

It is a key concept in redox chemistry – the chemistry of reactions where one reaction partner loses electrons (oxidation) while the other gains electrons (reduction). The hydrated electron is ...