

A099955


Atomic numbers of the alkali metals.


10




OFFSET

1,2


COMMENTS

Atomic numbers in first column in the Mendeleyev periodic table of elements.


LINKS

Table of n, a(n) for n=1..7.


FORMULA

a(n) = A018227(n1) + 1.  Lekraj Beedassy, Mar 31 2006


EXAMPLE

The atomic number of sodium is 11.


CROSSREFS

Cf. A099956, alkaline earth metals; A101648, metalloids; A101647, nonmetals (except halogens and noble gases); A097478, halogens; A018227, noble gases; A101649, poor metals.
Sequence in context: A213540 A085616 A138723 * A138724 A134984 A138725
Adjacent sequences: A099952 A099953 A099954 * A099956 A099957 A099958


KEYWORD

nonn,fini,full


AUTHOR

Parthasarathy Nambi, Nov 12 2004


EXTENSIONS

Edited by N. J. A. Sloane at the suggestion of Lekraj Beedassy, Jan 13 2008


STATUS

approved



