This is a periodic table,Author:<a href="https://en.wikipedia.org/wiki/zh:User:Sl" class="extiw" title="w:zh:User:Sl">w:zh:User:Sl</a>
林勇智
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<a href="https://en.wikipedia.org/wiki/zh:File:Periodic-table.png" class="extiw" title="w:zh:File:Periodic-table.png">w:zh:File:Periodic-table.png</a>