Chemistry Quiz on Atoms and Bonds

Who is credited with the discovery of the electron?

• John Dalton

• J.J. Thomson

• Ernest Rutherford

• Niels Bohr

What did Democritus call the smallest piece of matter?

• Proton

• Neutron

• Atom

• Electron

The idea that atoms are indivisible was proposed by:

• J.J. Thomson

• Democritus

• Ernest Rutherford

• Niels Bohr

Who discovered the proton?

• Niels Bohr

• John Dalton

• Ernest Rutherford

• James Chadwick

Which scientist is known for the gold foil experiment?

• Niels Bohr

• James Chadwick

• J.J. Thomson

• Ernest Rutherford

Who discovered neutrons?

• Niels Bohr

• James Chadwick

• J.J. Thomson

• John Dalton

According to Niels Bohr, electrons travel around the nucleus in specific:

• Paths

• Orbits

• Electromagnetic fields

• Zones

The atomic model that describes electrons moving in waves is known as:

• Bohr's Model

• Quantum Mechanical Model

• Dalton's Model

• Thomson's Model

The principal quantum number (n) indicates the:

• Shape of the orbital

• Orientation of the orbital

• Energy level of an electron

• Spin of the electron

What is the angular momentum quantum number (l) used to describe?

• The energy of an electron

• The shape of the orbital

• The spin of the electron

• The orientation of the orbital