Atomic Structure Scientists Flashcards
Who was the father of the modern atomic theory?
John dalton
who named the smallest piece of matter the atom?
Democtitus
Dalton’s atomic theory (4 parts)
All elements are composed of atoms. Atoms are indivisible and indestructible particles
Atoms of the same element are exactly alike
Atoms if different elements are different
Compounds are formed by the joining of atoms of two or more elements
Cathode Ray Experiment Discovered Electrons (negative charge)
J. J. Thomson
Gold foil experiment
Discovered the nucleus (positive charge) -proton
1st to compare to plants around the sun
Ernest rutherford
The farther the energy level is from the nucleus, the greater the energy of the electron
Bohr
Wave model
DeBroglie
Uncertainty principle
Heidenberg
Discovered neutrons
Chadwick
Democritus
Named the smallest piece of matter the atom
John dalton
Father of modern atomic theory
JJ Thomson
Cathode Ray Experiment Discovered Electrons (negative charge)
Ernest Rutherford
Gold foil experiment
Discovered the nucleus (positive charge) -proton
1st to compare to plants around the sun
Bohr
The farther the energy level is from the nucleus, the greater the energy of the electron
DeBroglie
Wave model