atomic number 10 definition

  • noun:
    • a colorless odorless gaseous factor giving a red glow in vacuum pressure tube; one of the six inert gasses; occurs in the air in a small amount
    • a colorless odorless gaseous element that provide a red radiance in a vacuum tube; one of several six inert gasses; happens in the air in lower amounts

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  • Hypernym for "atomic number 10"
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