The graph showing the variation of probability density,$\psi^2(r)$ with the distance of the electron from the nucleus,$r$ is given below. This represents:

The maximum number of electrons in a $P$ orbital with $n = 6$ and $m = 0$ is ......

Paramagnetic substances must contain .....

Given below are two statements:
Statement $I$ : For a given shell,the total number of allowed orbitals is given by $n^2$.
Statement $II$ : For any subshell,the spatial orientation of the orbitals is given by $-l$ to $+l$ values including zero.
In the light of the above statements,choose the correct answer from the options given below:

The number of radial nodes and angular nodes of a $4f$-orbital are respectively:

Which of the following orbitals has a dumbbell shape?