The number of waves made by an electron moving in an orbit having a maximum magnetic quantum number $(m_l) = 3$ is:

Based on the quantum numbers, what will be the maximum number of elements in the sixth period of the periodic table?

For $s-$orbitals,since $\psi$ (orbital) is independent of angles,the probability $(\psi^2)$ is

Which of the following transitions are allowed in the normal electronic emission spectrum of an atom?

Which of the following statements are correct?
$(a)$ When an electron in an atom moves from $n=4$ to $n=2$,it gains energy.
$(b)$ An electron in a $3p$ orbital would have less energy than an electron in a $2p$ orbital.
$(c)$ $A$ $3s$ subshell has a maximum of $2$ electrons.
$(d)$ $A$ $3^{rd}$ orbit may contain a maximum of $10$ electrons.

Which of the following is the correct set of $4$ quantum numbers for the $19^{th}$ electron in Chromium (Atomic number = $24$) in accordance with the Aufbau principle?