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Search: id:A101648
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| A101648 |
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Atomic numbers of the metalloids or semimetals on the periodic table. |
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+0
3
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OFFSET
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1,1
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COMMENT
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If ununhexium and ununseptium turn out to be metalloids, 116 and 117 should be added to this sequence, so I'm not putting the keyword full at this time. The metalloids are sandwiched between the nonmetals and the poor metals on the periodic table.
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REFERENCES
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The New Encyclopaedia Britannica, 15th Edition, 1991, Volume 15 (Macropedia), Chemical Elements.
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LINKS
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Wikipedia, Periodic table.
Wikipedia, Metalloids.
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EXAMPLE
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The atomic number of boron is 5.
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CROSSREFS
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Cf. A018227, A097478, A101647, A101649, A099956, A099955.
Sequence in context: A070129 A081861 A023652 this_sequence A070134 A064412 A139754
Adjacent sequences: A101645 A101646 A101647 this_sequence A101649 A101650 A101651
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KEYWORD
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fini,nonn
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AUTHOR
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Robert Happelberg (roberthappelberg(AT)yahoo.com), Dec 10 2004
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