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WorksheetsAtomic Timeline
Total questions: 15
Worksheet time: 15mins
Idea was of an indivisible particle of matter he called "atomos"
John Dalton
Aristotle
Democritus
Plato
Which of the following shows the correct order of Atomic Theory Timeline
Rutherford, Bohr, Dalton, Democritus, Thomson
Bohr, Democritus, Thomson, Rutherford, Dalton
Dalton, Thomson, Rutherford, Bohr, Democritus
Democritus, Dalton, Thomson, Rutherford, Bohr
Whose atomic model is this?
Bohr
Rutherford
Democritus
Dalton
Who proposed the first atomic theory based on scientific evidence?
John Dalton
Niels Bohr
Ernest Rutherford
Albert Einstein
Which scientist discovered the electron?
Niels Bohr
J.J. Thomson
Ernest Rutherford
James Chadwick
What experiment led to the discovery of the nucleus?
Gold foil experiment
Oil drop experiment
Cathode ray experiment
Double-slit experiment
Which model of the atom first introduced the concept of quantized energy levels?
Plum pudding model
Nuclear model
Bohr model
Quantum mechanical model
Who is known for the planetary model of the atom?
Niels Bohr
J.J. Thomson
Ernest Rutherford
Democritus
What did the gold foil experiment demonstrate about the structure of the atom?
Atoms are indivisible
Atoms have a dense nucleus
Electrons orbit the nucleus
Atoms are mostly empty space
Which scientist is credited with the discovery of the neutron?
James Chadwick
Niels Bohr
J.J. Thomson
Ernest Rutherford
What is the main idea of Dalton's atomic theory?
Atoms are indivisible and indestructible
Atoms have a dense nucleus
Electrons orbit the nucleus
Atoms are mostly empty space
Which atomic model was proposed by J.J. Thomson?
Plum pudding model
Nuclear model
Bohr model
Quantum mechanical model
What did Niels Bohr contribute to atomic theory?
Discovery of the electron
Concept of quantized energy levels
Discovery of the neutron
Gold foil experiment
Which scientist's work led to the development of the quantum mechanical model of the atom?
Erwin Schrödinger
Niels Bohr
J.J. Thomson
Ernest Rutherford
What is the significance of Democritus in the atomic timeline?
Proposed the first atomic theory
Discovered the electron
Conducted the gold foil experiment
Introduced the concept of the atom
