eno">  154</span>&#160;                                              <span class="stringliteral">&#39;RE&#39;</span>,  <span class="comment"># rhenium</span></div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;                                              <span class="stringliteral">&#39;GD3&#39;</span>,  <span class="comment"># gadolinium ion</span></div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;                                             