History of the Atom Model
Who was the first person to introduce the concept of atoms?
Democritus
Who thought that atoms were made of wind, fire, water and earth?
Aristotle
Who introduced the concept that atoms cannot be created or destroyed?
John Dalton
Who thought that atoms were arranged like billiard balls?
John Dalton
Who introduced the concept that all atoms must contain negative particles?
J.J. Thomson
Who said that negative charges in atoms are balanced by a positive spherical cloud?
J.J. Thomson
Who proved the existence of the atomic nucleus?
Ernest Rutherford
Who did the gold leaf experiment?
Ernest Rutherford
Who introduced the concept of electrons orbiting the nucleus?
Bohr
Who said that only certain electron orbits are allowed in certain shells?
Bohr
Who said each electron orbit has a specific energy?
Bohr
Who introduced the uncertatinty principle? (e;ectrons behaving in waves)
Heisenberg & Shrodinger
Who's theories about the atom gave rise to quantum theory?
Heisenberg & Shrodinger