Kr
Krypton
Element 36 · Noble gas · Period 4, Group 18
Gas · Discovered 1898
Atomic Properties
| Atomic Number | 36 |
| Atomic Mass | 83.8u |
| Electron Configuration | [Ar]4s2 3d10 4p6 |
| Electronegativity | 3Pauling |
| Atomic Radius | 202pm |
| Ionization Energy | 14eV |
| Oxidation States | 0 |
Physical Properties
| Standard State | Gas |
| Melting Point | 115.79K |
| Boiling Point | 119.93K |
| Density | 0.003733g/cm³ |
| Group Block | Noble gas |
| Year Discovered | 1898 |