Ксенон

54
Xe
Група
18
Периода
5
блок
p
Protons
Electrons
Neutrons
54
54
77
Општи Својства
Атомски број
54
Атомска тежина
131,293
Mass Number
131
Category
Благородни гасови
Color
Colorless
Radioactive
Не
From the Greek word xenon, stranger
Кристална структура
Face Centered Cubic
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.
Electrons per shell
2, 8, 18, 18, 8
Електронска конфигурација
[Kr] 4d10 5s2 5p6
Xe
If inhaled, xenon can cause a person's voice to deepen
Физички Својства
Фаза
Gas
Густина
0,005887 g/cm3
Точка на топење
161,45 K | -111,7 °C | -169,06 °F
Точка на вриење
165,03 K | -108,12 °C | -162,62 °F
Топлина на топење
2,3 kJ/mol
Топлина на испарување
12,64 kJ/mol
Specific Heat Capacity
0,158 J/g·K
Abundance in Earth's crust
2×10-9%
Abundance in Universe
1×10-6%
Vial
Кредити на слика: Images-of-elements
Vial of glowing ultrapure xenon
CAS Number
7440-63-3
PubChem CID Number
23991
Атомски Својства
Атомски полупречник
108 pm
Ковалентен полупречник
140 pm
Електронегативност
2,6 (Полингова скала)
Ionization Potential
12,1298 eV
Atomic Volume
37,3 cm3/mol
Thermal Conductivity
0,0000569 W/cm·K
Oxidation States
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