what kind of ions are formed when a metal reacts?

Metals react by forming positive ions, called cations.

Quick Scoop

• When a metal reacts (usually with a non‑metal), its atoms lose one or more electrons.

• Losing negatively charged electrons leaves the metal atom with an overall positive charge, so it becomes a positive ion (cation).

• Common examples:
  • Sodium forms Na⁺
  • Magnesium forms Mg²⁺
  • Calcium forms Ca²⁺

So, in short: when a metal reacts, it forms positively charged ions (cations).

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