TIMELINE OF THE DISCOVERY OF THE ATOM Flashcards
Solid Sphere Model
Dalton’s Atomic Theory
Dalton’s Atomic Theory is from…
JOHN DALTON
Plum pudding
Model is from…
JOHN JOSEPH
THOMSON
Nuclear Model is from…
ERNEST
RUTHERFORD
who discovered electrons
JOHN JOSEPH
THOMSON
who discovered protons
ERNEST
RUTHERFORD
who discovered neutrons
JAMES
CHADWICK
Assigned orbits to electrons that correspond to their
energy level
NIELS BOHR
he made the Planetary model of the atom
NIELS BOHR
what model did Niels Bohr make?
Planetary model of the atom
true or false
The farther the electron’s orbit is from the nucleus, the
less energy would be needed to remove that electron and
transfer it farther.
true
true or false
The closer the electron’s orbit is from the nucleus, the
less energy would be needed to remove that electron and
transfer it farther.
false
He found out that electrons are moving, exact position cannot be pinpointed
ERWIN SCHRODINGER
he made the Electron cloud model
ERWIN SCHRODINGER
This is the accepted accurate depiction of atomic structure
Electron cloud model
