203- How many of the following statements are correct?
The atomic mass of $\text{H}$ is slightly more than $1\ \text{amu}$.
Element $_{48}\text{X}$ with element $_{17}\text{Z}$ are in the same group, and with element $_{21}\text{Y}$ are in the same period.
In the third period of the periodic table, five elements have symbols that are two-letter abbreviations.
Every column of the periodic table contains elements with identical physical and chemical properties and is called a group.
(1) 1 (2) 2 (3) 3 (4) 4
\textbf{203-} How many of the following statements are correct?
\begin{itemize}
\item The atomic mass of $\text{H}$ is slightly more than $1\ \text{amu}$.
\item Element $_{48}\text{X}$ with element $_{17}\text{Z}$ are in the same group, and with element $_{21}\text{Y}$ are in the same period.
\item In the third period of the periodic table, five elements have symbols that are two-letter abbreviations.
\item Every column of the periodic table contains elements with identical physical and chemical properties and is called a group.
\end{itemize}
\begin{center}
(1) 1 \hspace{1cm} (2) 2 \hspace{1cm} (3) 3 \hspace{1cm} (4) 4
\end{center}