Atoms And Molecules Class 9 Science One Shot | NCERT Chapter 3 | CBSE Science | Chemistry
LearnoHub - Class 9,10・70 minutes read
Atoms are essential building blocks that can combine to form molecules. The Dalton Atomic Theory introduced symbols to represent elements and simplified identifying different units of matter.
Insights
- Atoms are the fundamental building blocks of matter, composed of a nucleus containing protons and neutrons orbited by electrons. The representation of atoms through symbols simplifies the identification of elements and ensures consistency in portraying the basic units of matter.
- The Laws of Chemical Combination, including the Law of Conservation of Mass and the Law of Constant Proportion, explain the behavior of atoms in chemical reactions. These laws dictate that atoms are indivisible, have unique properties, and combine in fixed ratios to form compounds, highlighting the foundational principles of chemistry.
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Recent questions
What are atoms made of?
Atoms consist of a dense nucleus with electrons.
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