What is the name of the ion with a charge of -1?

The correct answer is Anion.

Key Points

• An ion with a charge of -1 is called an anion.
• Anions are formed when an atom gains one or more electrons, resulting in a net negative charge.
• Common examples of anions include chloride (Cl^-), bromide (Br^-), and iodide (I^-).
• Anions play crucial roles in various chemical reactions and are essential in maintaining the charge balance in compounds.

Additional Information

• Cation
  • A cation is an ion with a positive charge.
  • Cations are formed when an atom loses one or more electrons.
  • Examples include sodium (Na⁺), calcium (Ca²⁺), and potassium (K⁺).
• Monovalent Ion
  • A monovalent ion has a charge of +1 or -1.
  • Examples include hydrogen ion (H⁺) and fluoride ion (F^-).
• Polyvalent Ion
  • A polyvalent ion has a charge greater than +1 or -1.
  • Examples include sulfate (SO₄^2-) and phosphate (PO₄^3-).
• Ions in Chemical Reactions
  • Ions are essential in the formation of ionic compounds.
  • Ionic bonds are formed through the electrostatic attraction between cations and anions.
  • Understanding ions is crucial for studying electrochemistry and various biological processes.