Krypton (Kr)
Krypton is a noble gas used in certain fluorescent lamps and photographic flash equipment.
Properties of Krypton
- Atomic number
- 36
- Category
- Noble Gas
- Atomic mass
- 83.798 u
- Electron configuration
- [Ar] 3d¹⁰ 4s² 4p⁶
- Melting point
- 115.78 K (-157.37 °C)
- Boiling point
- 119.93 K (-153.22 °C)
- Density
- 0.003733 g/cm³
- Electronegativity (Pauling)
- 3
- Appearance
- Colorless gas, white when solid
- Discovered by
- William Ramsay (1898)
Facts about Krypton
- Krypton is real — but sorry, it's not Superman's home planet!
- Krypton's name means "hidden" in Greek because it was hard to find!
- Krypton is used in some energy-efficient windows as insulation!
- Krypton lights glow a brilliant whitish-purple color!