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%I #39 Oct 06 2018 11:38:35
%S 1,2,10,7,8,9,18,17,36,54,86,3,19,11,37,20,12,15,4,87,55,16,6,14,5,38,
%T 13,21,35,56,39,22,34,53,118,63,32,88,33,31,23,57,52,40,51,58,59,70,
%U 85,60,30,24,117,61,50,49,25,62,26,64,65,66,41,48,67,99,27,28,29,68,84,69,100,83,71,102,89,42,101,47,82,43,90,81,46,44,45,116,72,115,96,80,95,114,97,98,91,103,113,73,92,74,79,94,93,75,78,77,76,104,112,111,105,110,106,107,109,108
%N Element numbers of the chemical elements sorted with respect to density.
%C The densities are measured at standard atmospheric pressure. The densities of astatine (85), francium (87), fermium (100) and above are only estimated due to the short half-life of these elements. - _Jianing Song_, Sep 30 2018
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/List_of_chemical_elements">List of chemical elements</a>.
%e The elements with the lowest densities are hydrogen (1), helium (2), neon (10), etc.
%Y Chemical elements sorted by: A081098 (melting point), A081099 (boiling point), A081100 (atomic radius), A081101 (covalent radius), A248026 (electronegativity), this sequence (density), A249874 (discovery).
%K nonn
%O 1,2
%A _Bo Lee_, Sep 30 2014
%E Edited by _Jianing Song_, Sep 30 2018
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