For $n = 5$ and $m = 2$,which of the following statements is incorrect?

For a given value of quantum number $l$,the number of allowed values of $m$ is given by

The electronic configuration $1s^2, 2s^2 2p^6, 3s^2 3p^6 3d^5, 4s^1$ represents:

What is the difference between $2p$ and $2s$ orbitals?

Which of the following is not correct for the electron distribution in the ground state for $4s$ and $3d$ orbitals?

The electronic configurations of four elements are given in brackets: $L\,(1s^2, 2s^2 2p^1)$; $M\,(1s^2, 2s^2 2p^5)$; $Q\,(1s^2, 2s^2 2p^6, 3s^1)$; $R\,(1s^2, 2s^2 2p^2)$. Which element would most readily form a diatomic molecule?