Structure of Atom — MCQ Practice

Which of the following sets of quantum numbers is NOT possible for an electron in an atom?

What is the maximum number of electrons that can be accommodated in a subshell for which $l=3$?

The electron configuration of an element is $[Ar]3d^5 4s^1$. What is the atomic number of this element, and what element is it?

Calculate the wavelength of the photon emitted when an electron in a hydrogen atom transitions from $n=4$ to $n=2$. (Given: Rydberg constant $R_H = 1.097 \times 10^7 \text{ m}^{-1}$)

According to Hund's rule of maximum multiplicity, which of the following electron configurations for a carbon atom (Z=6) is correct and represents the most stable state?

Which of the following statements about the Bohr model of the atom is INCORRECT?

An electron in a certain energy level has $n=3$. What are the possible values for the azimuthal quantum number ($l$) and the magnetic quantum number ($m_l$)?