|
Search: id:A138052
|
|
|
| A138052 |
|
Atomic numbers of periodic table:transition metal elements with penultimate energy level=18. |
|
+0
4
|
| |
|
|
OFFSET
|
0,1
|
|
|
COMMENT
|
Cu=29, Ar=47, Au=79, Rg=111.Companion to today 22, 40, 72, 104 .Level difference:18-10=8 but 29-22=111-104=7.
|
|
FORMULA
|
Mendeleyev-Seaborg,extended to 32 columns:25-th,Janet:23-th.
|
|
CROSSREFS
|
Implicit in A134984, explicit in A138724.A137575, A137846.
Adjacent sequences: A138049 A138050 A138051 this_sequence A138053 A138054 A138055
Sequence in context: A104912 A104913 A102852 this_sequence A119891 A106754 A063642
|
|
KEYWORD
|
nonn,uned
|
|
AUTHOR
|
Paul Curtz (bpcrtz(AT)free.fr), May 02 2008
|
|
|
Search completed in 0.002 seconds
|
