Models of the atom (AQA GCSE Physics): Flashcards
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Practise the cards
13 cards from this deck
Scientist who created the plum pudding model
Scientist who created the plum pudding model
J.J. Thomson
Structure of atom in plum pudding model
Structure of atom in plum pudding model
Positive background with negative electrons scattered throughout
Significance of plum pudding model
Significance of plum pudding model
First model to include electrons
Scientist who created the nuclear model of the atom
Scientist who created the nuclear model of the atom
Ernest Rutherford
What was fired at gold foil in Rutherford's experiment
What was fired at gold foil in Rutherford's experiment
Alpha particles (tiny positive particles)
What most alpha particles did in gold foil experiment
What most alpha particles did in gold foil experiment
Went straight through
What some alpha particles did in gold foil experiment
What some alpha particles did in gold foil experiment
Bounced back at large angles
What Rutherford's model placed at centre of atom
What Rutherford's model placed at centre of atom
Tiny, dense, positive nucleus
What most of the atom is, according to Rutherford
What most of the atom is, according to Rutherford
Empty space
Scientist who created the energy levels model
Scientist who created the energy levels model
Niels Bohr
Where electrons can orbit in Bohr's model
Where electrons can orbit in Bohr's model
Only in specific energy levels (shells/orbits)
What electrons do between energy levels (Bohr model)
What electrons do between energy levels (Bohr model)
Jump between levels by gaining/losing energy
Why Bohr's model was accepted by scientists
Why Bohr's model was accepted by scientists
His calculations matched experimental observations