China is blocking exports of these vital minerals. What makes them so special?

As the temperature decreased, the number of pairs increased and eventually saturated, while the remaining electrons formed an antiferromagnetic arrangement. At extremely low temperatures ...

For example Magnesium (Mg) has the electron arrangement 2,8,2. To become stable it must lose its two outer electrons to obtain a full outer energy level. Atoms are neutral because they have equal ...

In the limit of strong repulsions, electrons tend to localize ... lattices in which geometric constraints make a simple arrangement of magnetic moments impossible 1. In such specific cases ...

The experimental arrangement is such that the intensity ... The spurs are due to beamns of scattered electrons which are nearly if not quite as well defined as the primary beam.

Under certain conditions, electrons interact strongly with each ... is the Wigner crystal—a structured electron arrangement caused by their mutual repulsion. Although widely theorized ...