Breanna Willems


Democritus came up with the word atom 2,000 years ago. All elements are composed of atoms. Democritus had the theory that atoms could be divided into smaller particles and never disappeared.

The diffrent types of atoms.

Thompson compared his model to a plum in pudding. Thompson called the electrons corpuscles. Rutherford said atoms are like bullets there heavy. Rutherford's conclusion was that atoms are really empty. Borh compared his electrons to the energy level. The center of an atom is called a nuclues.