What is the major ion in seawater? sulfate chloride magnesium sodium

Chloride is the most abundant ion in seawater, making up about 55% of the dissolved ions. Its high concentration is primarily due to its natural sources such as the weathering of rocks, volcanic activity, and the evaporation of seawater. So next time you hit the beach, remember that the salty sea is just a big cocktail of minerals, with chloride stealing the show! In the grand ocean orchestra, chloride isn't alone; other ions like sodium, sulfate, and magnesium play supporting roles. Sodium holds the second position in concentration, forming sodium chloride (common salt) along with chloride. Despite its smaller share, magnesium is crucial in biological processes, like supporting marine life, making the ocean not only a vast body of water but a thriving ecosystem!