Atomic Physics Quiz

Who proposed the "plum pudding" model of the atom?

• John Dalton

• Niels Bohr

• J.J. Thomson

• Ernest Rutherford

In Rutherford's gold foil experiment, what did the deflection of alpha particles indicate?

• Atoms are indivisible

• Atoms are solid spheres

• The existence of a nucleus

• Electrons are in fixed orbits

Which model of the atom was compared to a watermelon?

• Dalton's Atomic Model

• Thomson's Model

• Bohr's Model

• Rutherford's Model

What does spectrometry of hydrogen gas reveal?

• The existence of isotopes

• The energy levels of electrons

• The mass of the atom

• The structure of the nucleus

Which scientist is known for the planetary model of the atom?

• Albert Einstein

• Niels Bohr

• Ernest Rutherford

• J.J. Thomson

Bohr's model of the hydrogen atom introduced the concept of:

• Nucleus

• Atomic number

• Quantized energy levels

• Protons and neutrons

Sommerfeld modified Bohr's model by introducing:

• Spherical orbits

• Elliptical orbits

• Circular orbits

• Parabolic orbits

What did Zeeman's modification on Bohr's model explain?

• Spectral lines splitting in a magnetic field

• Electron cloud model

• Atomic mass

• Radioactive decay

Who proposed the idea of electron spin?

• Ernest Rutherford

• Albert Einstein

• Goudsmit and Uhlenbeck

• Niels Bohr

De Broglie's hypothesis about electrons suggests that:

• Electrons are particles

• Electrons are waves

• Electrons have both particle and wave properties

• Electrons do not exist