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  • Symbol: Cl

  • Atomic Number: 17

  • Atomic Mass: 35.453

  • Electronegativity: 3.16

  • Valence electrons: 7

  • Melting point: -101 degrees Celsius

  • Discoverer: Carl Wilhelm Scheele

  • Group: 7

  • Best react with: water

Chlorine

I CAN'T SWIM WHEN MY POOL HAS TOO MUCH CHLORINE

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