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A krypton-nitrogen bond is found in the cation [HC≡N–Kr–F] +, produced by the reaction of KrF 2 with [HC≡NH] + [AsF − 6] below −50 °C. [35] [36] HKrCN and HKrC≡CH (krypton hydride-cyanide and hydrokryptoacetylene) were reported to be stable up to 40 K. [27] Krypton hydride (Kr(H 2) 4) crystals can be grown at pressures above 5 ...
In its best-known form, it is a green, crystalline material originating from Superman's home world of Krypton that emits a unique, poisonous radiation that can weaken and even kill Kryptonians. Kryptonite radiation can be transmitted through any element except lead. There are other varieties of kryptonite, such as red and gold kryptonite, which ...
In pre-Crisis on Infinite Earths continuity, Dev-Em is a Kryptonian juvenile delinquent who survives Krypton's destruction by placing himself in suspended animation in an orbiting space capsule. After landing on Earth, Dev-Em imprisons Superboy in the Phantom Zone and assumes his identity to destroy his reputation.
A radioactive crystal originating from the planet Krypton that is harmful to Kryptonians. Kryptonite comes in various colors with differing effects, and has been variously depicted as an element and compound. Kyber crystal: Star Wars: A rare, semi-sentient, crystalline material found across the galaxy.
Kal-El can lead an alter ego as Clark Kent because Kryptonians appear identical to humans. Also, in both Silver Age and Modern Age continuity, Kryptonians have more than one ethnic group, such as dark-skinned Kryptonians from Krypton's Vathlo Island that resemble Earth humans of West African, Negrito, Melanesian, and Indigenous Australian descent and a group from the continent of Twenx that ...
A Kryptonian researcher, interested in improving research into suspended animation. However, the unethical nature of his studies led to the Kryptonian Science Council suspending his research and choosing him as the first inmate of the Phantom Zone. A sociopath, Xa-Du swore revenge on the family of the Phantom Zone's discoverer, Jor-El.
Krypton is usually portrayed in comics as the home of a fantastically advanced civilization, which is destroyed when the planet explodes. As originally depicted, all the civilizations and races of Krypton perished in the explosion, with one exception: the baby Kal-El who was placed in an escape rocket by his father, Jor-El, and sent to the planet Earth, where he grew up to become Superman.
Luthor engineers a fake Kryptonian invasion, but Superman stops him and Luthor's schemes are revealed to the world after much of his LexCorp headquarters are destroyed. In the final seconds of the battle, Superman discovers the video monitor invented by Luthor which had managed to make contact with pre-destruction Krypton.