A group of inert gases which includes neon, helium, argon, krypton, xenon, and radon
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Tag: <span>N</span>
A soft, white and ductile metallic. Symbol, Nb
An isometric base metal. Symbol, Ni
An electrically neutral elementary particle, nearly equal in mass to a proton
A royalty paid to the royalty holder, usually contingent on the actual production from a mine, and not subject to the cost of extracting the minerals