Worksheets6A Development of Atomic Theory
Total questions: 33
Worksheet time: 52mins
Who was the first person to come up with the idea of the atom?
Democritus
Aristotle
Dalton
Thomson
Who created the plum pudding model of the atom?
Rutherford and the plums were protons
Rutherford and the plums were electrons
Thomson and the plums were protons
Thomson and the plums were electrons
The cathode-ray tube was used to discover the ____ by ____.
Electron by Thomson
Electron by Ruthefeord
Proton by Thomson
Proton by Rutherford
Rutherford discovered there were three main types of radiation. Which of the three types was used in his famous gold foil experiment?
alpha
beta
gamma
all three types
Why did most of the radiation pass through the gold foil in the experiment?
Nucleus is large and most of atom is empty space.
Nucleus is large and little of atom is empty space.
Nucleus is small and most of atom is empty space.
Nucleus is small and little of atom is empty space.
Neils Bohr stated that electrons moved around the nucleus at fixed distances. This Bohr model was also called the
Planetary model
Plum Pudding model
Nuclear model
Quantum Mechanical Model
Created the concept of orbitals
Heisenberg
de Broglie
Bohr
Schrodinger
Which of the following places the models of the atom from most historic to most recent.
solid sphere, plum pudding, nuclear, planetary, quantum mechanical
solid sphere, plum pudding, planetary, quantum mechanical, nuclear
plum pudding, nuclear, solid sphere, quantum mechanical, planetary
plum pudding, solid sphere, planetary, quantum mechanical, nuclear
Who ran the gold-foil experiment?
Rutherford
Thomson
Democritus
Dalton
This is an example of which model of the atom?
Rutherford's Model
Plum Pudding Model
Atomic Model
Bohr's Model
What experiment did J.J. Thomson run to develop his model of the atom?
Gold-Foil Experiment
Definite Proportion Experiment
Cathode-Ray Tube Experiment
No experimentation was done
Who developed this model of the atom?
Plum Pudding Model
J.J. Thomson
Proto-Electron Model
Ernest Rutherford
What did the cathode-ray tube experiment prove?
Atoms could be broken into smaller parts
Atoms caused the changes in matter
Atoms join to create compounds
The center of an atom has a nucleus
What did Ernest Rutherford discover with his experiments?
Atom
Electron
Nucleus
Kinetic Energy
Where did Rutherford propose that most of the mass of an atom resided?
In the middle of the atom
Along the edge of the atom
Scattered throughout the atom
Orbiting around the atom
A) Ernest Rutherford
B) J.J. Thomson
C) John Dalton
