Question

Which of the following is not a feature of quantum mechanical model?

• A. The exact location and velocity of electron can be easily determined
• B. Orbitals can have more than two electrons
• C. Energy of electrons is quantised
• D. All of the above

Answer 1

Answer: (A), (B)

The correct options are
A Orbitals can have more than two electrons
B The exact location and velocity of electron can be easily determined

In wave mechanical model, velocity and position of and electron cannot be determined simultaneously.

Orbitals can have more than 2 electrons.

Energy of electron is not quantized whereas the electron revolve in quantized energy orbit.