Xenon

54
Xe
Grupp
18
Period
5
Block
p
Protoner
Elektroner
Neutroner
54
54
77
Generella Egenskaper
Atomnummer
54
Atommassa
131,293
Masstal
131
Kategori
Ädelgaser
Färg
Färglös
Radioaktiv
Nej
From the Greek word xenon, stranger
Kristallstruktur
Ytcentrerat kubiskt
Historia
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.
Elektroner per skal
2, 8, 18, 18, 8
Elektronkonfiguration
[Kr] 4d10 5s2 5p6
Xe
If inhaled, xenon can cause a person's voice to deepen
Fysikaliska Egenskaper
Aggregationstillstånd
Gasformig
Densitet
0,005887 g/cm3
Smältpunkt
161,45 K | -111,7 °C | -169,06 °F
Kokpunkt
165,03 K | -108,12 °C | -162,62 °F
Smältvärme
2,3 kJ/mol
Ångbildningsvärme
12,64 kJ/mol
Specifik värmekapacitet
0,158 J/g·K
Abundance in Earth's crust
2×10-9%
Abundance in Universe
1×10-6%
Vial
Bildkrediter: Images-of-elements
Vial of glowing ultrapure xenon
CAS Number
7440-63-3
PubChem CID Number
23991
Atomära Egenskaper
Atomradie
108 pm
Kovalent radie
140 pm
Elektronegativitet
2,6 (Paulingskalan)
Jonisationspotential
12,1298 eV
Molvolym
37,3 cm3/mol
Värmeledningsförmåga
0,0000569 W/cm·K
Oxidationstillstånd
2, 4, 6, 8
Användningsområden
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 not toxic, but its compounds are highly toxic
Isotoper
Stabila isotoper
124Xe, 126Xe, 128Xe, 129Xe, 130Xe, 131Xe, 132Xe, 134Xe, 136Xe
Instabila isotoper
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