According to the official sources, is the radioactive green crystal that serves as Superman's Achilles' heel actually composed of the noble gas krypton, or is it supposed to be made out of some other substance? If so, what is that substance?
Answer
No, kryptonite is not composed of the element krypton.
The composition of Kryptonite varies depending on the source material.
In the Silver to Bronze Age stories as well as in the "Green, Green Glow of Home" episode of Lois & Clark New adventures of Superman Kryptonite is a stable transuranic element (element 126) that finally decays to iron.
However in Superman III (1983) it is said that Kryptonite is a alloy made up of 15.08% plutonium, 18.06% tantalum, 27.71% xenon, 24.02% promethium, 10.62% dialium, 3.94% mercury, and 0.57% of an unknown substance. A Post Crisis story in Action comics #591 (Aug 87) also made Kryptonite an alloy.
Comments
Post a Comment