Chemistry

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Chemistry is the scientific study of interaction of chemical substances that are constituted of atoms or the subatomic components that make up atoms: protons, electrons and neutrons. Atoms combine to produce molecules or crystals. Chemistry can be called “the central science” because it connects the other natural sciences, such as astronomy, physics, material science, biology, and geology.

The genesis of chemistry can be traced to certain practices, known as alchemy, which had been practiced for several millennia in various parts of the world, particularly the middle east.

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Introduction: Atomic Theory

Lesson: History of the Atomic Theory I- Ancient Times; Atomic theory states that all matter is composed out of extremely small particles called atoms.

John Dalton's Atomic Theory

Lesson: History of the Atomic Theory- Part 2; Acc. to John Dalton's Theory, every element is made up of a unique type of small particles called atoms, and atom can neither be created, destroyed, nor subdivided.

Sub atomic Discoveries

Lesson: History of the Atomic Theory- Part 3; In this lesson we'll learn about discovery of the electron through experimentation with cathode ray tubes.

Solar System

Lesson: History of the Atomic Theory- Part 4; This lesson summarizes experiments of Milikan, Goldstein and Rutherford (Father of nuclear physics).

Protons, Neutrons & Electrons

Lesson: History of the Atomic Theory- Part 5; This lesson deals with discoveries of isotopes, protons, neutrons, and atomic pretzels.

Quantum Physics & Bohr

Lesson: History of the Atomic Theory- Part 6; Here we'll learn Neil Bohr's Atomic Model Theory acc. to which, electrons don't just orbit the nucleus. They surround the nucleus in specific distances and this distance is proportional to their energy.