What are two similarities and differences between Cl and Cl negative?

Chlorine (Cl) and chloride (Cl⁻) share similarities in that they both consist of the same element, chlorine, and exhibit similar chemical behavior due to their related atomic structure. However, a key difference is that Cl is a neutral atom with 17 protons and 17 electrons, while Cl⁻ is an anion with an extra electron, giving it a negative charge and altering its reactivity and bonding properties. This added electron in Cl⁻ makes it more stable in ionic compounds.