Meet the mysterious electrides
via arstechnica.com
Short excerpt below. Read at the original source.
For close to a century, geoscientists have pondered a mystery: Where did Earth’s lighter elements go? Compared to amounts in the Sun and in some meteorites, Earth has less hydrogen, carbon, nitrogen, and sulfur, as well as noble gases like helium—in some cases, more than 99 percent less. Some of the disparity is explained by […]