Concept
Version 13
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The Bottom of the Periodic Table
![The extended periodic table with predicted Periods 8 and 9](../../../../../../../../../figures.boundless-cdn.com/9705/full/iodic-20table-20predictive.jpg)
The extended periodic table with predicted Periods 8 and 9
The periodic table with all groups and periods in place. The placement of the undiscovered g-block is speculative.
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