Science notes for class 9

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Class 9th Science notes for better learning for students

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In this we will describes the theories given by many scientists of atom then the main theory or postulates given by John Dalton and terms related to atoms like atomic mass ,symbols of many elements and much more

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Class notes
• 7 pages's •
by amartya1 •
uploaded 2024

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Science notes for class 9 • Science notes for class 9