86
Rn
Radon
222.0176
2
8
18
32
18
8
8
18
32
18
8
| Property | Value |
|---|---|
| Atomic number | 86 |
| Atomic weight | 222.0176 amu |
| Element family | Nobel gases |
| Electronic configuration | 1s2 |
| Stable and very long lived isotopes | None |
| Previous element | Astatine |
| Next element | Francium |
| Density | 0.00973 g/cm3 (STP) |
| Melting | -71 °C |
| Boiling | -61.8 °C |
| Covalent radius | 1.42 Å |
| Van der Waals radius | 2.2 Å |
| First ionization potential | 10.747 eV |
| Electron affinity | -0.700 eV |
| Electronegativity | 2.2 |
| Discovery year | 1899 |
Radon is an element number 86 from nobel gases family. Its symbol is Rn. Radon atomic weight is 222.0176 amu. Rn has no stable or long lived isotopes. Radon electronic configuration is 1s22s22p63s23p63d104s24p64d104f145s25p65d106s26p6. Radon density is 0.00973 g/cm3 (STP). Radon melting point is -71 °C. Radon boiling point is -61.8 °C. Radon covalent radius is 1.42 Å. Radon van der waals radius is 2.2 Å. Radon first ionization potential is 10.747 eV. Radon first ionization potential is -0.700 eV. Radon electronegativity by Pauling scale is 2.2. Radon was discovered in 1899.
Please let us know how we can improve this web app.
