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A160914
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Extended s-block elements for Janet table.
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1
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1, 2, 3, 4, 11, 12, 19, 20, 37, 38, 55, 56, 87, 88, 119, 120, 169, 170, 219, 220, 291, 292, 363, 364, 461, 462, 559, 560, 687, 688, 815, 816, 977, 978, 1139, 1140, 1339, 1340, 1539, 1540, 1781, 1782, 2023, 2024, 2311, 2312, 2599, 2600, 2937, 2938, 3275, 3276
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| See A168342. Must be included in A167268. From right to left, first vertical is A168380 from 1 to 8. Second vertical is A168380-1. In (1) page 12, introducing elements 93 to 120, Janet says that there is a probable 8-th row. For row 8, he proposes, like for row 7, 32 elements (89 to 120). Page 16 he presents 4 blocks: first has 2*8 elements, second: 6*6, third: 10*4, fourth: 14*2. Today, blocks are s,p,d,f for Mendeleyev-Moseley-Seaborg 118 elements periodic table. See (2), (3), A173592 and A138509. In 1927, only 88 on the first 92 elements were known; 41 (1937 discovered), 61 (1947), 85 (1940) and 87 (1939) were missing. Since 2010 (117 discovered) the first 118 elements are known. Janet predicted only 120 elements.
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REFERENCES
| Charles JANET, La structure du Noyau de l'atome,considérée dans la Classification périodique, des éléments chimiques, 1927 (Novembre) N. 2 Beauvais, 67 pages, 3 leaflets.
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EXAMPLE
| The following is an s-block, 2*8=16 elements, i.e., a(n) written vertically, after p-block, 6*6, (A138469).
1 2
3 4
5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20
31 32 33 34 35 36 37 38
49 50 51 52 53 54 55 56
81 82 83 84 85 86 87 88
113 114 115 116 117 118 119 120
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CROSSREFS
| Cf. A099955.
Sequence in context: A039023 A110918 A181542 * A155768 A138985 A184806
Adjacent sequences: A160911 A160912 A160913 * A160915 A160916 A160917
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KEYWORD
| nonn,tabl
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AUTHOR
| Paul Curtz (bpcrtz(AT)free.fr), Oct 15 2011
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