Just one word: wonderful.

The brevity and abruptness of the lines in the first stanza seem incompatible with the rich, lyrical images and cadence of the second, but still, not enough to be substantially jarring; I would only suggest more description on the first stanza in order to harmonize it with the second. Captures its subject matter beautifully. *applause* Adieu, Kat

Marvelously written fall into the depths. This is enhanced greatly by the comparison to a new element. That part really stuck with me. Very thought provoking. This truly captures the atmosphere that you've aspired to well. It lingers. And that's always a good outcome of any work. Supurb.

This actually reminded me of a friend of mine. It's a wonderful, wonderful poem. It just takes you in and doesn't let go. Simply beautiful, as always. Keep writing for a long time!

I love the title and the enjambement! Works very well. And flows well, too... a bit ambiguous, but I sense that that is part of the poem. I particularly love the lines 'lead puddles in arteries and veins/ no longer pushing you up/'... actually the whole of the first stanza. Also, the elements in the periodic table was very cleverly done.
Good work :D