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Noble Gases

The gaseous chemical elements helium, neon, argon, krypton, xenon and radon, which are all placed in Group 0 of the Periodic Table.

They are so named because of their marked reluctance to 'lower' themselves by combining with other chemical elements to form compounds. They took a long time to discover as they hardly ever combine with other elements in reactions.

Characteristics:

  • unreactive
  • exist as single atoms
  • used as inert gases in electric discharge and filament lamps
H He
Li Be B C N O F Ne
Na Mg Al Si P S Cl Ar
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac
Lanthanides Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
Actinides Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr
See also: Argon, Gas, Helium, Krypton, Neon, Noble Metals, Radon, Xenon.

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Chemistry
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