CBSE Syllabus | NCERT Syllabus | Science Class 9 NCERT Syllabus
Chemistry 1. Structure of Atom Isobars Isotopes Mass Number Atomic Number Valency How are Electrons Distributed in Different Orbits (Shells)? Neutrons Bohr’s Model of Atom
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Chemistry 1. Structure of Atom Isobars Isotopes Mass Number Atomic Number Valency How are Electrons Distributed in Different Orbits (Shells)? Neutrons Bohr’s Model of Atom