Atomic Theory Quiz

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

• J.J. Thompson

• Aristotle

• Democritus

• John Dalton

Which Quaker teacher challenged Aristotelian theory by showing that common substances always broke down into the same elements?

• Democritus

• J.J. Thompson

• Aristotle

• John Dalton

Who discovered the electron in 1897 and proposed the 'chocolate chip cookie model' of the atom?

• Aristotle

• Democritus

• J.J. Thompson

• John Dalton

Who is known as the father of the nuclear age and conducted the gold foil experiment to discover the atomic nucleus?

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

• Max Planck

• Werner Heisenberg

• Niels Bohr

• J.J. Thompson

Who formulated the famous uncertainty principle, showing the impossibility of determining both the exact position and speed of electrons?

• Max Planck

• Werner Heisenberg

• Niels Bohr

• J.J. Thompson

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

• Atoms are solid spheres

• Atoms consist largely of empty space with a dense nucleus

• Atoms have a uniform positive charge

• Atoms have no nucleus

Which model of the atom proposed that electrons behave like waves and cannot be confined to a particular point in space?

• Rutherford Model

• Bohr Model

• Heisenberg Model

• Thompson Model

Who showed that electrons exist within a range of possible locations, leading to the current quantum model of the atom?

What phenomenon results in the absorption or release of specific wavelengths of light by electrons in an atom?