There is an element called Krypton, it has nothing to do with superheros from another planet.
Krypton Tetrafluoride
The element krypton has the symbol Kr.
Krypton has 8 valence electrons.
krypton's atomic number is rounded to 84
Krypton.
Superman can not be real because there is no planet Krypton.
If you mean "planet", then No. Note, Krypton is a nobel gas ... so it's not in plants either.
There is no real planet Krypton; nor an imaginary Krypton as it blew up as Kal Els parents flew him away to earth in a small spaceship.
Krypton is a component of the Earth atmosphere.
supermum and superdad
First off, Kryptonite isn't real. It's called Krypton. The symbol for KRYPTON is Kr
Kal-El--Superman's real name--was born on the planet Krypton. He was shot into space by his parents before the planet exploded. Thus, radioactive fragments of the plant Krypton are called "Kryptonite."
If you used real words people would answer it.
Krypton Tetrafluoride
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.
The element krypton has the symbol Kr.
It is Krypton!