ATOMIC SIZE : Trends in Modern Periodic Table || in Hindi for Class 10 

In this Chemistry video in Hindi for Class 10 we discussed on how atomic size varies in the Modern Periodic Table and the reason behind that trend.
The term atomic size refers to the radius of an atom. The atomic size may be visualized as the distance between the centre of the nucleus and the outermost shell of an isolated atom.
Atomic radius decreases in moving from left to right along a period. This is due to an increase in nuclear charge which tends to pull the electrons closer to the nucleus and reduces the size of the atom.
Atomic size increases down the group. This is because new shells are being added as we go down the group. This increases the distance between the outermost electrons and the nucleus so that the atomic size increases in spite of the increase in nuclear charge.
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🔴 Click here to watch the whole playlist on Chapter 5 : 'Periodic Classification of Elements' for Class 10 :
• Periodic Classificatio...
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🔴 Periodic Classification of Elements (Introduction) || History of Periodic Table
• Periodic Classificatio...
🔴 Mendeleev Periodic Table
• Mendeleev's Periodic T...
🔴 Modern Periodic Table
• Modern Periodic Table ...