Concept Map

Last updated at July 20, 2026 by

Atomic Foundations Conservation Laws Conservation of Mass Constant Proportions Dalton’s theory How Atoms Combine Covalent (share) Ionic (transfer) Molecule / ion Writing Formulae Criss-cross valency Simplest ratio Brackets for ions Mass of Compounds Molecular mass Formula unit mass Properties
Atomic Foundations of Matter
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Conservation Laws
Conservation of Mass
Constant Proportions
Dalton’s theory
How Atoms Combine
Covalent bond (share)
Ionic bond (transfer)
Molecule & ion
Writing Formulae
Criss-cross valency
Simplest whole-number ratio
Brackets for polyatomic ions
Mass of Compounds
Molecular mass
Formula unit mass
Ionic vs covalent properties
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CA Maninder Singh is a Chartered Accountant with 16+ years of practical experience and 20+ years of teaching experience. He teaches Science, Economics, Accounting and English at Teachoo using clear explanations and exam-focused methods students can trust.

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