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Search: id:A138040
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| A138040 |
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Atomic number of the 2nd transition metal (group 4) in the n-th row of the periodic system of elements. |
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+0
2
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OFFSET
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4,1
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COMMENT
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Refers to Titanium=22, Zirconium=40, Hafnium=72, Rutherfordium=104.
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LINKS
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Anonymous, Periodic Table, Wikipedia.
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CROSSREFS
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Cf. A134984, A138724, A137575.
Sequence in context: A075217 A116658 A026061 this_sequence A154087 A063327 A066957
Adjacent sequences: A138037 A138038 A138039 this_sequence A138041 A138042 A138043
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KEYWORD
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nonn,fini,full,less
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), May 02 2008
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EXTENSIONS
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Edited by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 21 2009
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