HONORS CHEMISTRY PEOPLE

Democritus

• First people to think about the existence of atoms

• Believed that matter was built of tiny indivisible particles

John Dalton

• Used expierments to transform Democritus’s ideas

• Studied ratios

• Dalton’s Atomic Theory

JJ Thompson

Discovered the electron

Eugen Goldstein

Discovered the proton

James Chadwick

Discovered the neutron

Ernest Rutherford

Rutherford’s Gold Foil Experiment

Created the model of the nuclear atom 

Dmitri Mendeleev

Organized the elements by order of increasing mass and so that everything in the same row holds similar properties

Henry Moseley

Rearranged the elements by order of increasing atomic number

Max Planck

Planck’s Constant ( 6.626 × 10^-34 x J x S )

Niels Bohr

Developed Bohr Model

Said electrons were found only in circular paths and around the nucleus 

Erwin Schrodinger

Cat guy

Said that we don’t know it two things are happening at once

Used calculations to solve a mathematical equation describing the behavior of the elctron in a hydrogen atom