It is a chemical element having an atomic number, and its symbol is . Among the halogens, this is the second lightest.
At room temperature, It appears as a yellow-green color gas.
It is a highly reactive element and a powerful oxidizer, with the highest electron affinity and third-highest electronegativity among the elements.
According to the American Chemistry Council, Swedish pharmacist Carl Wilhelm Scheele dropped a few drops of hydrochloric acid on a piece of manganese dioxide in his lab in, and a greenish-yellow gas was created in a matter of seconds.
However, it was not recognized until several decades later, English chemist Sir Humphry Davy identified chlorine as an element.
In , Davy named the chemical as "chloric gas," or "chlorine," from the Greek term "khloros," which means "greenish-yellow."
High concentrations of elemental chlorine are exceedingly harmful and deadly to most living creatures.
Therefore, Carl Wilhelm Scheele discovered Chlorine and Humphry Davy named it.