The probability of finding an electron in the $p_x$ orbital is

If an atom has $13$ electrons in the $M$ shell and $1$ electron in the $N$ shell,then the number of unpaired electrons in that atom is ...

When the principal quantum number is $n = 3$,the possible values of the azimuthal quantum number $(l)$ are:

For an electron with $n = 3$,there is only one radial node. The orbital angular momentum of the electron will be

The angular part of the wave function for an orbital is given by $\psi_{(\theta, \phi)} = \left( \frac{15}{4\pi} \right)^{1/2} \sin \theta \cos \theta \sin \phi$,where $\theta$ is the angle from the $z$-axis. The angular node$(s)$ are:

The electronic configuration $1s^2 2s^2 2p_x^1 2p_y^1 2p_z^1$ corresponds to which of the following elements?