Chemistry Quick Facts


                       
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



Noble (Inert) Gases
Chemical Properties, Physical Properties and General Information


Radioactive Material Sign
Radioactive Natural Element
Radioactive Material Sign
Radioactive Synthetic Element
Toxic Material Sign
Toxic Element
Group 18 of the Periodic Table
Name Sym. No. Atomic
Weight
Melting
Point
Boiling
Point
Phase Density Valence
Electrons
Oxidation
States
Helium He 2 4.002602 -272.2 C -268.93 C Gas 0.1786 g/L 1s2 0
Neon Ne 10 20.1797 -248.59 C -246.08 C Gas 0.9002 g/L 2s22p6 0
Argon Ar 18 39.948 -189.35 C -185.85 C Gas 1.784 g/L 3s23p6 0
Krypton Kr 36 83.798 -157.36 C -153.22 C Gas 3.749 g/L 4s24p6 +2
Xenon Xe 54 131.293 -111.7 C -108.12 C Gas 5.894 g/L 5s25p6 0
Radon Radioactive Natural Element Toxic Element Rn 86 222 -71.15 C -61.85 C Gas 9.73 g/L 6s26p6 0
Ununoctium Radioactive Synthetic Element Uuo 118 294 Unknown Unknown Gas Unknown 7s27p6 ? 0

Noble Gases: Group 18 of the periodic table, the most stable due to having the maximum number of valence electrons their outer shell can hold, rarely react with other elements; conduct electricity, odorless, colorless, and are used in many conditions when a stable element is needed to maintain a safe and constant environment.



Electrical Engineering Patents and Inventions     Chemistry Quick Facts

Privacy     Disclaimer     Contact     About     Site Map     Home

 


Last updated: April 2011
Copyright 2006-2011 Patent-Invent.com