Cl
Halogen's periodic abbreviation
Cl is the chemical symbol for chlorine, element 17 on the periodic table.
In chemical formulas and equations, it represents a chlorine atom: NaCl (sodium chloride, table salt), Cl₂ (chlorine gas).
The symbol appears throughout chemistry, medicine, and water treatment contexts.
chemical
Halogen disinfectant element
- elementBasic substance or factor
- halogenSalt-producing element group
- periodic tableSystematic display of elements
- gasFormless, expanding substance
disinfectant · bleach · water treatment · oxidizer · reagent · sanitizer · pungent · reactive
chlorine
Halogen disinfectant element
- elementBasic substance or factor
- halogenSalt-producing element group
- periodic tableSystematic display of elements
gas · disinfectant · bleach · water treatment · oxidizer · reagent · sanitizer · pungent · reactive · ion
electronegativity/electron behavior
ClK
Eleventh alphabet letter
alkali metals · Li · cations · metals · transition metals