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%I #14 Apr 18 2013 02:50:51
%S 5,6,7,8,9,10,13,14,15,16,17,18,31,32,33,34,35,36,49,50,51,52,53,54,
%T 81,82,83,84,85,86,113,114,115,116,117,118
%N Atomic numbers of p-block elements.
%C 6 X 6 square of orbital p filling elements in Mendeleyev-Seaborg or Janet-Tarantola periodic table.
%C The sequence is considered full if we assume that all elements with 8 shells or more, i.e. of periods 8 and higher in Mendeleev's periodic table, have extremely unstable nuclei (extremely short half-life.)
%C The atomic numbers of elements in each block are
%C s-block: 1,2, 3,4, 11,12, 19,20, 37,38, 55,56, 87,88 for Mendeleev's periodic table (Cf. A160914)
%C s-block: 1,2, 3,4, 11,12, 19,20, 37,38, 55,56, 87,88, 119,120 for Janet's periodic table (Cf. A160914)
%C p-block: 5..10, 13..18, 31..36, 49..54, 81..86, 113..118 (Cf. A138469)
%C d-block: 21..30, 39..48, 71..80, 103..112 (Cf. A199934)
%C f-block: 57..70, 89..102 (Cf. A217923)
%H OEIS Wiki, <a href="/wiki/Periodic_table">Periodic table</a>
%Y Cf. A130517, A131603, A167268.
%Y Cf. A160914 Atomic numbers of s-block elements.
%Y Cf. A138469 Atomic numbers of p-block elements.
%Y Cf. A199934 Atomic numbers of d-block elements.
%Y Cf. A217923 Atomic numbers of f-block elements.
%K nonn,tabf,fini,full
%O 1,1
%A _Paul Curtz_, May 09 2008
%E Edited by _Daniel Forgues_, May 15 2011
%E Ref. to A160914 and A199934 inserted by _Jean-François Alcover_, Oct 15 2012
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