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A138228
Atomic numbers at the top of the 18 groups of the Mendeleyev-Seaborg table A138724.
0
1, 4, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 5, 6, 7, 8, 9, 2
OFFSET
0,2
COMMENTS
This refers to the following 18 elements at the top of their groups: H, Be, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, B, C, N, O, F, He.
CROSSREFS
Sequence in context: A329404 A370979 A076943 * A303722 A305225 A272954
KEYWORD
nonn,fini,full,less
AUTHOR
Paul Curtz, May 05 2008
STATUS
approved