An anion is an ion that carries a negative electrical charge because it has gained one or more electrons. Since electrons have a negative charge, gaining extra electrons gives the atom or molecule an overall negative charge. Anions are commonly formed by non-metals during chemical reactions. They play an essential role in forming ionic compounds by combining with positively charged ions (cations). Common examples include chloride (Cl⁻), oxide (O²⁻), sulfate (SO₄²⁻), and nitrate (NO₃⁻). These ions are important in chemistry, biology, and many industrial processes.
Anion is a __________ charge?
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This question is part of 🔬 General Science within the broader 🌐 Current Affairs & GK subject and appears in the PPSC Punjab Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.