The Elements: Chlorine

Chlorine is a versatile element with both harmful and beneficial properties. At high concentrations, it is a poisonous gas used historically as a weapon. However, at lower concentrations, it is safe for humans and is used to disinfect swimming pools and treat drinking water. Chlorine is also a key component in cleaning products like bleach. In nature, it is mostly found as sodium chloride, or salt, making up a significant part of ocean mass. Within the human body, chlorine plays a crucial role in fluid regulation, digestion, and immune response. Despite its potential dangers, chlorine is essential for life.

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