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fire and water: just the four—
but the chemists need many more.
The top of the table is sparse, but every second period or layer,
like the bard from Japan whose verses never would scan, adds an extra list.
As we* reach the sixth and seventh periods, short of horizontal space,
we must** resort to footnotes just to keep a healthy handle on the case.
* following the example of the chemists and their sort
** because the margin is too narrow for a full report
Turns out† that the seventh layer consists mostly of ones that do not exist
but need‡ to be synthesised. Some of them do not even have proper names.
The eighth layer has not been started yet, so the only thing to do about
it is to turn back and traverse the table from the bottom to the top
so that the same period games
allow the lines to peter out
† as we step through the double-starred list of the actinoids
‡ by means of reactors or colliders or other toys