Atomic number of Chlorine

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What is the atomic number of Chlorine?


Keep in mind that Chlorine is a chemical element with symbol Cl.  Moreover, its atomic number is 17.  It is interesting to know the fact that Chlorine is in the halogen group (17).  Needless to say, it is the second lightest halogen following fluorine. Keep in mind the fact that Chlorine is a yellow-green gas under standard conditions, where it forms diatomic molecules.  It is extremely important to know the fact that Chlorine has the highest electron affinity and the fourth highest electronegativity of all the reactive elements. Chlorine is necessary to all known species of life.

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