Bozeman Science
Mass Spectrometry
In this video Paul Andersen explains how a spectrometer was used to identify the presence of isotopes. This modified Dalton's original atomic theory because atoms of the same element had different masses. The functional parts of a mass...
Curated Video
Dalton's Vision: The Birth of Atomic Theory
In 1803, John Dalton formulated his renowned theory of atoms. The principal tenets of his theory were as follows: ₷ Atoms were thought to be the smallest, hardest, densest, and indivisible particles of matter. Every element is made up of...
Curated Video
A Pint-Sized Theory
Dr. Forrester defines the terms: molecule and compounds. She explains that every substance of matter is made up of atoms, and she discusses Dalton’s atomic theory.
Higgsino Physics
How Atomic Physics Started
Early atomic physics - the development of the first ideas. The first ideas started with Democritus: atom is unsplittable. Then John Dalton Law of constant proportions. Avogadro: Molecular theory of gas laws. Prout's hydrogen weight...
msvgo
What is an Atom?
It defines an atom and tells about its discovery. It describes the characteristics of an atom.
TMW Media
Atomic Theory of Matter Part 1
This program covers part 1 of the very important topic of the atomic theory of matter. We discuss how atoms combine together to form new compounds. Students review the law of conservation of mass and how the mass of the substances at the...
Visual Learning Systems
Exploring the Building Blocks of Matter: the Modern Atomic Theory
Upon viewing the Exploring the Building Blocks of Matter video series, students will be able to do the following: Understand that the quest to better understand the building blocks of matter has transpired over the past several thousand...
Visual Learning Systems
The Development of Atomic Theory
The video discusses the development of the atomic theory, starting with Democritus' belief that matter cannot be infinitely divided. It then highlights John Dalton's contributions in the early 1800s, where he observed weather activities...
Other
The Science Classroom: History of the Atom (Atomic Theory)
Looks at the history of models of the atom beginning with Democritus and ending with contemporary understanding of the atom. Covers all major models. [9:02]
Socratica Foundation
Socratica: History of the Atom (Dalton, Thomson, Rutherford, and Bohr Models)
Discusses the history of the atom in chronological order, covering the models postulated by John Dalton, J.J. Thomson, Earnest Rutherford, and Niels Bohr. Illustrations are presented for each model. [6:32]
Sophia Learning
Sophia: John Dalton: Lesson 3
This lesson reviews Dalton's Atomic Theory and explains each of the points.. It is 3 of 3 in the series titled "John Dalton."