Ksenon

54
Xe
Skupina
18
Perioda
5
Blok
p
Protons
Electrons
Neutrons
54
54
77
General Properties
Vrstno število
54
Atomska teža
131,293
Mass Number
131
Kategorija
Žlahtni plini
Barva
Brezbarven
Radioactive
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.
Electrons per shell
2, 8, 18, 18, 8
Razporeditev elektronov
[Kr] 4d10 5s2 5p6
Xe
If inhaled, xenon can cause a person's voice to deepen
Physical Properties
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
Abundance in Earth's crust
2×10-9%
Abundance in Universe
1×10-6%
Vial
Zasluge za slike: Images-of-elements
Vial of glowing ultrapure xenon
CAS Number
7440-63-3
PubChem CID Number
23991
Atomic Properties
Atomski polmer
108 pm
Kovalentni polmer
140 pm
Elektronegativnost
2,6 (Paulingova lestvica)
Ionization Potential
12,1298 eV
Atomic Volume
37,3 cm3/mol
Toplotna prevodnost
0,0000569 W/cm·K
Oksidacijska stanja
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
Isotopes
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