DavidB4-bot
→top: clean up & uniformity
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Dvergne
no edit summary
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WesleyS
cat
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JessicaT
New page: {{Element | name=Thorium | symbol=Th | anumber=90 | amass=232.03806 amu | state=Solid | class=Metallic | cstructure=Cubic face centered| color=soft, ductile silvery metal | date=1829 | dis...
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