C1a.5.6b Discovery 2
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C1a.5.6b Discovery 2

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C1a.5.6b Discovery 2 Presentation Transcript

  • 1. The noble gases Group 0
  • 2. Helium
    • He
    • Discovered in 1868 as an unknown spectral line in the Sun by French astronomer Pierre Janssen and separately by English astronomer Norman Lockyer .
  • 3. Neon
    • Ne
  • 4. Argon
  • 5. Krypton
  • 6. Xenon
  • 7. Radon