Xenon

54
Xe
Gruppe
18
Periode
5
Blok
p
Protons
Electrons
Neutrons
54
54
77
General Properties
Atomnummer
54
Atommasse
131,293
Mass Number
131
Kategori
Ædelgasser
Farve
Colorless
Radioactive
Nej
From the Greek word xenon, stranger
Krystalstruktur
Fladecentreret Kubisk
History
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 i hver skal
2, 8, 18, 18, 8
Elektronkonfiguration
[Kr] 4d10 5s2 5p6
Xe
If inhaled, xenon can cause a person's voice to deepen
Physical Properties
Tilstandsform
Gas
Massefylde
0,005887 g/cm3
Smeltepunkt
161,45 K | -111,7 °C | -169,06 °F
Kogepunkt
165,03 K | -108,12 °C | -162,62 °F
Smeltevarme
2,3 kJ/mol
Fordampningsvarme
12,64 kJ/mol
Varmefylde
0,158 J/g·K
Abundance in Earth's crust
2×10-9%
Abundance in Universe
1×10-6%
Vial
Billede akkrediteringer: Images-of-elements
Vial of glowing ultrapure xenon
CAS Number
7440-63-3
PubChem CID Number
23991
Atomic Properties
Atomradius
108 pm
Kovalent radius
140 pm
Elektronegativitet
2,6 (Paulings skala)
Ionization Potential
12,1298 eV
Atomic Volume
37,3 cm3/mol
Varmeledningsevne
0,0000569 W/cm·K
Oxidationstrin
2, 4, 6, 8
Applications
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
Stable Isotopes
124Xe, 126Xe, 128Xe, 129Xe, 130Xe, 131Xe, 132Xe, 134Xe, 136Xe
Unstable Isotopes
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