What Is an Ion? Cations, Anions and Why Atoms Form Ions

What are ions, and why do atoms gain or lose electrons? 🧪 In this video, we explore *ions in chemistry* with simple explanations, examples, and practice questions. Learn how atoms form positive and negative ions and how ionic compounds are formed. 📚 *Topics covered in this lesson:* What is an ion? How cations (positive ions) and anions (negative ions) form Why atoms gain or lose electrons Electron configuration and the octet rule How to predict ionic charges using the periodic table Monatomic and polyatomic ions Examples of ions: Na⁺, Mg²⁺, Al³⁺, Cl⁻ and O²⁻ Writing formulas of ionic compounds, including NaCl, MgCl₂ and CaO Properties of ionic compounds and electrical conductivity Practice questions with answers This lesson is ideal for **IGCSE and Higher Secondary Chemistry students**, school learners, and anyone who wants to understand ions and ionic compounds from the basics. 👍 Like, share and subscribe for more easy chemistry lessons. 💬 *Test yourself:* Why does sodium form Na⁺ instead of Na²⁺? Write your answer in the comments! #Ions #IGCSEChemistry #ChemistrySimplified #CationsAndAnions #IonicCompounds #IGCSEChemistry #Grade9Chemistry #Chemistry