Atomic Timeline

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

Tags

NGSS.MS-PS1-1

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