Radon
86
Rn
Skupina
18
Perioda
6
Blok
p
Protoni
Elektroni
Neutroni
86
86
136
Opća svojstva
Atomski broj
86
Relativna atomska masa
[222]
Maseni broj
222
Kategorija
Plemeniti plinovi
Boja
Bezbojan
Radioaktivan
Da
Ime je izvedeno iz riječi radij; koj se isprva zvao niton, a taj naziv dolazi od latinske riječi nitens, svjetleći
Kristalna struktura
n/a
Povijest
Radon was discovered in 1900 by Friedrich Ernst Dorn in Halle, Germany.
He reported some experiments in which he noticed that radium compounds emanate a radioactive gas.
In 1910, Sir William Ramsay and Robert Whytlaw-Gray isolated radon, determined its density, and determined that it was the heaviest known gas.
He reported some experiments in which he noticed that radium compounds emanate a radioactive gas.
In 1910, Sir William Ramsay and Robert Whytlaw-Gray isolated radon, determined its density, and determined that it was the heaviest known gas.
Elektrona po ljusci
2, 8, 18, 32, 18, 8
Elektronska konfiguracija
[Xe] 4f14 5d10 6s2 6p6
Upon condensation, radon glows because of the intense radiation it produces
Fizikalna svojstva
Agregacijsko stanje
Plinovito
Gustoća
0,00973 g/cm3
Talište
202 K | -71,15 °C | -96,07 °F
Vrelište
211,3 K | -61,85 °C | -79,33 °F
Toplina taljenja
3 kJ/mol
Toplina isparavanja
17 kJ/mol
Specifični toplinski kapacitet
0,094 J/g·K
Zastupljenost u Zemljinoj kori
n/a
Zastupljenost u svemiru
n/a
CAS broj
10043-92-2
PubChem CID broj
24857
Atomska svojstva
Atomski radijus
120 pm
Kovalentni radijus
150 pm
Elektronegativnost
-
Potencijal ionizacije
10,7485 eV
Atomski volumen
50,5 cm3/mol
Toplinska vodljivost
0,0000364 W/cm·K
Stanja oksidacije
2, 4, 6
Primjene
Radon is used in hydrologic research that studies the interaction between ground water and streams.
Radon has been produced commercially for use in radiation therapy.
Radon has been used in implantable seeds, made of gold or glass, primarily used to treat cancers.
Radon has been produced commercially for use in radiation therapy.
Radon has been used in implantable seeds, made of gold or glass, primarily used to treat cancers.
Radon is highly radioactive and a carcinogen
Izotopi
Stabilni izotopi
-Nestabilni izotopi
195Rn, 196Rn, 197Rn, 198Rn, 199Rn, 200Rn, 201Rn, 202Rn, 203Rn, 204Rn, 205Rn, 206Rn, 207Rn, 208Rn, 209Rn, 210Rn, 211Rn, 212Rn, 213Rn, 214Rn, 215Rn, 216Rn, 217Rn, 218Rn, 219Rn, 220Rn, 221Rn, 222Rn, 223Rn, 224Rn, 225Rn, 226Rn, 227Rn, 228Rn