Atomic Model Timeline

Multiple Choice

"Atomos" means

• can no longer be cut or divided

• atoms

• atomic model

• can no longer be added together

​Dalton: Billiard Ball Model

Multiple Select

Dalton said that

• all elements are composed of atoms

• all atoms of the same element have the same mass

• elements are made from the four earthly properties

• compounds contain atoms of more than one element

• in a particular compound, atoms of the same element always combine in the same way

Multiple Choice

Thomson discovered the

• electron

• proton

• neutron

• atom

• n

Multiple Choice

Rutherford discovered the

• atom

• electron

• neutron

• proton

• nucleus

Multiple Choice

Bohr concentrated on

• electron configuration

• nucleus composition

• atomic mass

• atomic size

Multiple Choice

Came up with the first model to have energy levels

• Bohr

• Dalton

• Rutherford

• Thomson

Multiple Choice

Came up with the first "Atomic Theory"

• Dalton

• Rutherford

• Bohr

• Democritus

Multiple Choice

Identified the negative charges in an atom

• Dalton

• Rutherford

• Thomson

• Aristotle

Multiple Choice

Created the "Plum Pudding Model"

• Rutherford

• Thomson

• Dalton

• Democritus

Multiple Choice

Created the "Billiard Ball" model

• Dalton

• Thomson

• Schrodinger

• Bohr

Multiple Choice

Identified the movement of electrons around an atom

• Bohr

• Schrodinger

• Rutherford

• Thomson

Multiple Choice

Who named the other subatomic particle that lives in the nucleus of an atom?

• Bohr

• Rutherford

• Thomson

• Chadwick