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Isotopes and Isobars

Isotopes and Isobars In atomic theory, the concepts of isotopes and isobars are essential to understanding variations in atomic structures […]

Introduction to Atomic Structure The atomic structure is the foundation of all matter. Atoms are the smallest units that retain

What is Electronic Configuration? Electronic configuration refers to the arrangement of electrons in the orbitals of an atom. It determines

Dual Nature of Matter Author: CHEMASH • Last reviewed: Sep 14, 2025 Dual Nature of Matter Introduction The Dual Nature

Discovery of Electron, Proton, and Neutron 1. Discovery of Electron (J.J. Thomson, 1897) The electron was discovered by J.J. Thomson

Bohr’s Model of the Atom Bohr’s Model of the Atom Illustration of Bohr’s atomic model showing quantized electron orbits around

Atomic Number and Mass Number Atoms are identified by two key numbers: the atomic number and the mass number. These

Atomic Models Understanding the structure of an atom has been a key pursuit in chemistry and physics. Over time, scientists

pH and Its Measurement The term pH stands for “potential of Hydrogen” and is a scale used to specify the

Preparation of Salts Chemists prepare salts by reacting acids with bases, metals, or carbonates. Depending on the reactants, they apply