Report copyright - PERIODIC TABLE OF THE ELEMENTS VIIIA 11 2 · 2 8 18 18 9 2 2 8 18 19 9 2 2 8 18 21 8 2 2 8 18 22 8 2 2 8 18 23 8 2 2 8 18 24 8 2 2 8 18 25 8 2 2 8 18 25 9 2 2 8 18 27 8 2 2 8 18 28
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