Mercury/Potassium

Second most abundant element in Mercury's exosphere and one of first detected by Mariner 10. Thought to originate from the surface.

Magnesium Detected in Mercury's Atmosphere (May 2009)

 * See Mercury/Atmosphere, Mercury/Tail, Mercury/Magnesium, Mercury/Calcium, Mercury/Sodium, Mercury/Iron, Mercury/Aluminum, Mercury/Silicon


 * http://www.denverpost.com/headlines/ci_12267618
 * http://www.colorado.edu/news/r/3cc168fd0a6b2a95605dee1f60b4e03b.html