If the atomic number of element $X$ is $7,$ the best electron dot symbol for the element is

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?

The electronic configuration of a nitrogen atom in its ground state is represented as follows:

Which of the following represents the electronic configuration of an element with atomic number $17$?

The maximum number of electrons that can have the set of quantum numbers $n=4$,$m_l=0$,and $m_s=\frac{1}{2}$ is

Which orbital is represented by the wave function $\Psi_{310}$?