Chlorine is the chemical element with atomic number 17 and symbol Cl.
It is a halogen, found in the periodic table in group 17.
As the chloride ion, which is part of common salt and other compounds, it is abundant in nature and necessary to most forms of life, including humans.
In its elemental form under standard conditions, it is a pale green gas about 2.5 times as dense as air.
As chlorine gas, it has an intensely disagreeable suffocating odor, and is exceedingly poisonous.
In its liquid and solid form it is a powerful oxidizing, bleaching, and disinfecting agent.
For more information about the topic Chlorine, read the full article at Wikipedia.org, or see the following related articles:
Editor's Note: This article is not intended to provide medical advice, diagnosis or treatment.
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