History of the Atomic Model by Hannah and Morgan

Democritus

400

Around 400 BCE, Democritus claimed that everything is made up of atoms and that iron atoms had hooks to hold them together. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. GaggleTube, n.d. Web. 25 Feb. 2014

Dalton

Jan 1, 1803

Dalton discovered things can be broken down into elements. He added that atoms are small things that have different mass and properties, "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. GaggleTube, n.d. Web. 25 Feb. 2014.

Thomson

Feb 27, 1904

Thomson discovered that atoms have electrons. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. GaggleTube, n.d. Web. 25 Feb. 2014.

Rutherford

Feb 27, 1911

Discovered that atoms have a nucleus. And that stoms looked like empty space. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. GaggleTube, n.d. Web. 25 Feb. 2014.

Bohr

Feb 27, 1913

Bhor's theory clamied that electrons act like planets around the nucleus. (atoms spin in an orbit.) "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. GaggleTube, n.d. Web. 25 Feb. 2014.

Heisenberg and Shrodinger

Feb 27, 1920

Discovered that electrons spin all around the nucleus; like hyperactive flies. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. GaggleTube, n.d. Web. 25 Feb. 2014.

Aristotle

Mar 2, 2022

Around 384 BCE, Aristotle declared that no matter how many times you cut a piece of matter, there will always be a smaller piece. He thought atoms looked like models and everything was made up of the four elements.