Ksenon
54
Xe
Skupina
18
Perioda
5
Blok
p
Protoni
Elektroni
Nevtroni
54
54
77
Splošne lastnosti
Vrstno število
54
Atomska teža
131,293
Masno število
131
Kategorija
Žlahtni plini
Barva
Brezbarven
Radioaktivno
Ne
From the Greek word xenon, stranger
Kristalna struktura
Ploskovno centrirana kubična
Zgodovina
Xenon was discovered in England by the Scottish chemist William Ramsay and English chemist Morris Travers in 1898.
They found xenon in the residue left over from evaporating components of liquid air.
Spectroscopic analysis showed the previously unseen beautiful blue lines that indicated the presence of a new element.
They found xenon in the residue left over from evaporating components of liquid air.
Spectroscopic analysis showed the previously unseen beautiful blue lines that indicated the presence of a new element.
Elektroni po lupinah
2, 8, 18, 18, 8
Razporeditev elektronov
[Kr] 4d10 5s2 5p6
If inhaled, xenon can cause a person's voice to deepen
Fizikalne lastnosti
Faza snovi
Plin
Gostota
0,005887 g/cm3
Tališče
161,45 K | -111,7 °C | -169,06 °F
Vrelišče
165,03 K | -108,12 °C | -162,62 °F
Talilna toplota
2,3 kJ/mol
Izparilna toplota
12,64 kJ/mol
Toplotna kapaciteta
0,158 J/g·K
Zastopanost v Zemljini skorji
2×10-9%
Zastopanost v vesolju
1×10-6%
CAS številka
7440-63-3
PubChem CID številka
23991
Atomske lastnosti
Atomski polmer
108 pm
Kovalentni polmer
140 pm
Elektronegativnost
2,6 (Paulingova lestvica)
Ionizacijski potencial
12,1298 eV
Atomski volumen
37,3 cm3/mol
Toplotna prevodnost
0,0000569 W/cm·K
Oksidacijska stanja
2, 4, 6, 8
Uporabe
Xenon is used in flash lamps and arc lamps, and in photographic flashes.
Xenon is used in medicine as a general anesthetic and in medical imaging.
In nuclear energy applications, xenon is used in bubble chambers, probes, and in other areas where a high molecular weight and inert nature is desirable.
Xenon is used in medicine as a general anesthetic and in medical imaging.
In nuclear energy applications, xenon is used in bubble chambers, probes, and in other areas where a high molecular weight and inert nature is desirable.
Xenon is not toxic, but its compounds are highly toxic
Izotopi
Stabilni izotopi
124Xe, 126Xe, 128Xe, 129Xe, 130Xe, 131Xe, 132Xe, 134Xe, 136XeNestabilni izotopi
110Xe, 111Xe, 112Xe, 113Xe, 114Xe, 115Xe, 116Xe, 117Xe, 118Xe, 119Xe, 120Xe, 121Xe, 122Xe, 123Xe, 125Xe, 127Xe, 133Xe, 135Xe, 137Xe, 138Xe, 139Xe, 140Xe, 141Xe, 142Xe, 143Xe, 144Xe, 145Xe, 146Xe, 147Xe