History of Atomic Theory Quiz

Who was the ancient Greek philosopher that first proposed the idea of atoms?

• Aristotle

• Democritus

• John Dalton

• J.J. Thompson

Which Quaker teacher challenged Aristotelian theory and showed that substances always break down into the same elements?

• Aristotle

• Democritus

• John Dalton

• J.J. Thompson

Who discovered the electron in 1897?

• Aristotle

• Democritus

• John Dalton

• J.J. Thompson

What did J.J. Thompson's model of the atom propose?

• Atoms are uniformly packed spheres of positive matter filled with negatively charged electrons.

• Atoms consist largely of empty space with just a few electrons.

• Electrons orbit the nucleus at fixed energies and distances.

• Electrons cannot be pinpointed but exist within a range of possible locations.

What did Ernest Rutherford's gold foil experiment reveal about the structure of atoms?

• Atoms are uniformly packed spheres of positive matter filled with negatively charged electrons.

• Atoms consist largely of empty space with just a few electrons.

• Electrons orbit the nucleus at fixed energies and distances.

• Electrons cannot be pinpointed but exist within a range of possible locations.

Who expanded on Rutherford's nuclear model and proposed that electrons orbit the nucleus at fixed energies and distances?

• Niels Bohr

• Max Planck

• Albert Einstein

• Werner Heisenberg

What did Werner Heisenberg's uncertainty principle state?

• Atoms are uniformly packed spheres of positive matter filled with negatively charged electrons.

• Atoms consist largely of empty space with just a few electrons.

• Electrons orbit the nucleus at fixed energies and distances.

• Electrons cannot be pinpointed but exist within a range of possible locations.

What does the current quantum model of the atom propose?

• Atoms are uniformly packed spheres of positive matter filled with negatively charged electrons.

• Atoms consist largely of empty space with just a few electrons.

• Electrons orbit the nucleus at fixed energies and distances.

• Electrons cannot be pinpointed but exist within a range of possible locations.

What happens when electrons circling an atom shift between energy levels?

• They absorb or release energy in the form of specific wavelengths of light.

• They form compounds with other atoms.

• They combine to form the nucleus of the atom.

• They create a magnetic field around the atom.

Which ancient Greek philosopher first proposed the idea of atoms?

• Aristotle

• Democritus

• John Dalton

• J.J. Thompson