iran-konkur 2021 Q216

iran-konkur · Other · konkur-riazi_1400_specialized Not Maths
216-- Referring to the partial periodic table below, how many of the related statements are correct?
Group $\rightarrow$121617
Period $\downarrow$
2AD
3EG
4XZ

  • The metallic character of A is less than E.
  • The electron affinity of G is greater than D.
  • The atomic radius of X is larger than D and G.
  • Among the identified elements, Z has the largest atomic radius.

1) 1 2) 2 3) 3 4) 4
\textbf{216--} Referring to the partial periodic table below, how many of the related statements are correct?

\begin{center}
\begin{tabular}{|c|c|c|c|c|}
\hline
Group $\rightarrow$ & 1 & 2 & 16 & 17 \\
Period $\downarrow$ & & & & \\
\hline
2 & & A & D & \\
\hline
3 & E & & & G \\
\hline
4 & & X & & Z \\
\hline
\end{tabular}
\end{center}

\begin{itemize}
\item The metallic character of A is less than E.
\item The electron affinity of G is greater than D.
\item The atomic radius of X is larger than D and G.
\item Among the identified elements, Z has the largest atomic radius.
\end{itemize}

\hspace{2cm} 1) 1 \hspace{2cm} 2) 2 \hspace{2cm} 3) 3 \hspace{2cm} 4) 4