Quantum Theory and the Atom

1. "Electrons have particle and wave-like properties."

• Planck

• Heisenberg

• de Broglie

• Schrodinger

2. The position & momentum of the electron cannot be known at the same time.

• Planck

• de Broglie

• Schrodinger

• Heisenberg

3. How is the Quantum Mechanical Model (QMM) different from Bohr's model?

• The QMM shows the probability of the electron's location.

• The QMM shows the exact location of the electron.

• Bohr's model shows the probability of the electron's location.

• The QMM does not include a nucleus.

An electron cloud

• represents a 50% probability of finding an electron

• has uniform density

• can be called an orbital

• can only show where the electron is not located

Which of the following statements about the Schrödinger wave equation is NOT true?

• the quantum mechanical model of the electron comes from this equation

• solutions to this equation are called wave functions

• this equation supports the Bohr model of electron orbits

• quantization of electron energies is required to solve the equation

The Quantum Mechanical Model is the most recent/modern atomic model.

• True

• False

Which scientist developed the Quantum Mechanical?

• E. Schroedinger

• J. Dalton

• W. Heisenberg

• N. Bohr