Chemistry Quick Facts
Google
 
 
Element Properties
   By Name
  By Atomic Number
  By Density
  Melting & Boiling Point
  Electron Configuration
  Radioactive Elements
  Noble & Precious Metals
Periodic Table
Groups
   Periodic Table
  Alkali Metals
  Alkaline Earth Metals
  Halogens
  Noble (Inert) Gases
  Rare Earth Elements
  Transition Metals
  Metalloids (Semimetals)
  Nonmetals
  Poor Metals
Materials
   Toxic Substances
  Semiconductor Materials
  Vitamins
  Amino Acids
Inventions
& Patents
Reference


Xenon
Chemical Properties & Compounds



Symbol Atomic Number Atomic Weight Melting Point Boiling Point Phase Density Classification
Xe 54 131.293 -111.7 °C -108.12 °C Gas 5.894 g/L Noble Gas


54 iodine ← xenon → caesium
Kr
↑
Xe
↓
Rn
General
Name, Symbol, Number xenon, Xe, 54
Chemical series noble gases
Group, Period, Block 18, 5, p
Appearance colorless
Standard atomic weight 131.293(6)  g·mol−1
Electron configuration [Kr] 4d10 5s2 5p6
Electrons per shell 2, 8, 18, 18, 8
Physical properties
Phase gas
Density (0 °C, 101.325 kPa)
5.894 g/L
Melting point 161.4 K
(-111.7 °C, -169.1 °F)
Boiling point 165.03 K
(-108.12 °C, -162.62 °F)
Triple point 161.405 K, 81.6 kPa[1]
Critical point 289.77 K, 5.841 MPa
Heat of fusion 2.27  kJ·mol−1
Heat of vaporization 12.64  kJ·mol−1
Heat capacity (25 °C) 20.786  J·mol−1·K−1
Vapor pressure
P(Pa) 1 10 100 1 k 10 k 100 k
at T(K) 83 92 103 117 137 165
Atomic properties
Crystal structure cubic face centered
Oxidation states 0, +1, +2, +4, +6, +8
(rarely more than 0)
(weakly acidic oxide)
Electronegativity 2.6 (scale Pauling)
Ionization energies 1st: 1170.4 kJ/mol
2nd: 2046.4 kJ/mol
3rd: 3099.4 kJ/mol
Atomic radius (calc.) 108  pm
Covalent radius 130  pm
Van der Waals radius 216 pm
Miscellaneous
Magnetic ordering nonmagnetic
Thermal conductivity (300 K) 5.65 m W·m−1·K−1
Speed of sound (liquid) 1090 m/s
CAS registry number 7440-63-3
Selected isotopes
Main article: Isotopes of xenon
iso NA half-life DM DE (MeV) DP
124Xe 0.095% Xe is stable with 70 neutrons
125Xe syn 16.9 h ε 1.652 125I
126Xe 0.089% Xe is stable with 72 neutrons
127Xe syn 36.345 d ε 0.662 127I
128Xe 1.91% Xe is stable with 74 neutrons
129Xe 26.4% Xe is stable with 75 neutrons
130Xe 4.07% Xe is stable with 76 neutrons
131Xe 21.2% Xe is stable with 77 neutrons
132Xe 26.9% Xe is stable with 78 neutrons
133Xe syn 5.247 d β− 0.427 133Cs
134Xe 10.4% Xe is stable with 80 neutrons
135Xe syn 9.14 h β− 1.16 135Cs
136Xe 8.86% Xe is stable with 82 neutrons
References
Xenon Compounds

Source: Wikipedia article Xenon


Privacy   Disclaimer   Contact   About    Site Map   Home

Last updated: October 2007

Copyright © 2006-2007 Patent-Invent.com