[aerohead]

Originally Posted by freebeard

It's nice when we can agree.

DDG obfuscates the links. https://www.khanacademy.org/science/...onic-compounds. (I just copied 'Naming ions and ionic compounds (article) | Khan Academy' and searched on that)

1850 was addressed at Permalink #1527.

* I dug out my old college chemistry text, and unless those who decide what we calls things have moved the goal posts, 'ions' are either atoms or molecules which have either gained or lost an electron.
* Free electrons would just be atomic particles, either from some collision, or experiencing a temperature above the binding energy.
* The solar wind is electrons, protons, and atomic nuclei.
* CMEs are extreme concentrations of the above.
* Also, 'superluminal' particles, traveling at velocities greater than the speed of light in air, can travel to Earth via gamma ray particles of energies in the trillions of electron-volts.