Atomic Models and Theories

Front

Who arranged the elements on the periodic table based on atomic mass?

Back

Dmitri Mendeleev

Front

Solid Sphere Model; elements are atoms with different masses

Back

Dalton

Front

Plum Pudding Model: atom is positive sphere with negatively charged particles evenly embedded throughout

Back

JJ Thomson

Front

Named the atom based on the Greek word “atomos” meaning indivisible.

Back

Democritus

Front

Electron Cloud Model: surrounding the nucleus is an electron cloud made of shells, but electrons do not travel in a fixed orbit

Back

Schrodinger and Heisenberg

Front

Who discovered that the nucleus was the positively charged center of the atom surrounded by negatively charged electrons through the Gold Foil experiment?

Back

Ernest Rutherford

Front

Discovered neutrons

Back

James Chadwick

Front

Who arranged the elements on the periodic table based on atomic number?

Back

Henry Moseley

Front

Who proposed that electrons travel in fixed orbits around the nucleus of the atom, like planets around the sun?

Back

Niels Bohr

Front

The location where the mass of the atom is located

Back

Nucleus