Cation are _____________ charged ions such as Na+, K+, and Ca2+.
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Cations are positively charged ions, such as Na+ (sodium ion), K+ (potassium ion), and Ca2+ (calcium ion). These ions have lost one or more electrons in their outermost energy level, resulting in a net positive charge. Cations are usually formed by metals, and they typically react with anions, which are negatively charged ions, to form ionic compounds. In aqueous solutions, cations are attracted to the negatively charged ends of polar molecules, such as water, and may form hydration shells around them. This property of cations is important in many biological systems, where they play essential roles in regulating cellular processes.
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