[(1)] In the atom $_{22}$Ti, only two electrons have the set of quantum numbers $n=3$, $l=2$, and $m_s = +\dfrac{1}{2}$.
[(2)] The principal quantum number $n$ was first proposed by Schr\"{o}dinger to calculate the energy of electrons in an atom.
[(3)] The number of electrons with spin $+\dfrac{1}{2}$ in atom $_{30}$Zn differs from that in atom $_{24}$Cr.
[(4)] The emission line spectrum of the hydrogen atom was first discovered by Henry Moseley.
\textbf{202-} Which option is \textbf{correct}?
\begin{enumerate}
\item[(1)] In the atom $_{22}$Ti, only two electrons have the set of quantum numbers $n=3$, $l=2$, and $m_s = +\dfrac{1}{2}$.
\item[(2)] The principal quantum number $n$ was first proposed by Schr\"{o}dinger to calculate the energy of electrons in an atom.
\item[(3)] The number of electrons with spin $+\dfrac{1}{2}$ in atom $_{30}$Zn differs from that in atom $_{24}$Cr.
\item[(4)] The emission line spectrum of the hydrogen atom was first discovered by Henry Moseley.
\end{enumerate}