

A138052


Atomic number of the penultimate transition metal (group 11) in the nth row of the periodic system of elements.


0




OFFSET

4,1


COMMENTS

This refers to Cu=29, Ar=47, Au=79, and Rg=111.
The first differences are 18, 18, 32, indicating that there is a row of Lanthanides between Au and Rg.


LINKS

Table of n, a(n) for n=4..7.
Wikipedia, Periodic table


CROSSREFS

Cf. A134984, A138724, A137575, A137846, A138040.
Sequence in context: A225303 A344466 A102852 * A119891 A106754 A222413
Adjacent sequences: A138049 A138050 A138051 * A138053 A138054 A138055


KEYWORD

nonn,fini,full,less


AUTHOR

Paul Curtz, May 02 2008


EXTENSIONS

Edited by R. J. Mathar, May 21 2009


STATUS

approved



