Classification of Elements and Periodicity in Properties Class 11 Notes Chemistry Chapter 3 Why do we need to Classify Elements? At present 114 elements are known. Efforts to synthesise new elements are continuing. It is very difficult to study such a large number of elements individually and to study their properties separately. The necessity was…
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Structure of Atoms Class 11 Notes Chemistry Chapter 2 Sub-Atomic Particles: Dalton’s Atomic Theory regarded the atom as the ultimate particle of matter. It explained satisfactorily various laws of chemical combination like the law of conservation of mass, the law of constant composition, and the law of multiple proportions. However, it failed to explain the…
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Some Basic Concepts of Chemistry Class 11 Notes Chemistry Chapter 1 Importance of Chemistry: Chemistry plays a central role in science and is often intertwined with branches of science like Physics, Biology, Geology, etc. Chemistry also plays an important role in meeting human needs for food, health care products, etc. → Chemistry deals with the…
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CBSE Class 11th Chemistry Notes | Chemistry Class 11 NCERT Notes Notes of Class 11 Chemistry | Chemistry Class 11 NCERT Notes Some Basic Concepts of Chemistry Class 11 Notes Structure of Atom Class 11 Notes Classification of Elements and Periodicity in Properties Class 11 Notes Chemical Bonding and Molecular Structure Class 11 Notes States…
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