green Cristal
Oxygen
Kryptonite
Kryptonite
It's from the Superman comics, it's an element from his home planet that weakens his powers and can be used against him.
Krypton
Krypton
Lead.
The real actual element is krypton, it is a noble gas (#36 on the periodic table of elements). In Superman stories the planet is called Krypton, and the green crystals of doom are called Kryptonite.
It's from the Superman comics, it's an element from his home planet that weakens his powers and can be used against him.
Superman doesn't exactly have allergies, but the space rock "kryptonite" weakens his powers.
Krypton was the element named after Superman's home planet.
Kryptonite robs Superman of his strength.
Krypton
Krypton
Magnesium
Superman did the atomic number of Krypton(Kr) which is 36
Kryptonite
Oxygen
Lead.
There is an element called Krypton, it has nothing to do with superheros from another planet.