What is an Ion || Atoms and Molecules - 9 || in Hindi for Class 9 Science NCERT

In this Science (Chemistry) video in Hindi for class 9 we explained what an ion is. This is a topic from Chapter 3 - 'Atoms and Molecules' from Std 9th Science, NCERT.
Atom has protons, neutrons and electrons. Protons are positively charged and electrons are negatively charged. Neutrons are neutral. Atom has same number of protons and neutrons and hence, they are neutral. But, sometimes atoms, esp., metals loose one or more electrons and become positively charged and they are called cations or positive ions. And, sometimes atoms, esp., non-metals gain one or more electrons and become negatively charged and they are called anions or negative ions.
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🔴 Click here to watch the whole playlist on Chapter 3 : 'Atoms and Molecules' for Class 9 :
• Atoms and Molecules (I...
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Atoms and Molecules (Introduction)
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Law of Conservation of Mass
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Law of Constant Proportions
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Dalton's Atomic Theory
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How Big are Atoms (Size Comparison)
• How Big are Atoms (Siz...
Modern Day Symbols of Different elements
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Atomic Mass
• Atomic Mass || Atoms a...
What si a Molecule
• What is a Molecule || ...