202. The second ionization energy of which element, compared to the others given, is greater? (1) $_{11}$Na (2) $_{5}$B (3) $_{4}$Be (4) $_{9}$F
\textbf{202.} The second ionization energy of which element, compared to the others given, is greater?
\medskip
(1) $_{11}$Na \hfill (2) $_{5}$B \hfill (3) $_{4}$Be \hfill (4) $_{9}$F
\medskip