A244005 Atomic numbers of the pre-transition metals.

3, 4, 11, 12, 13, 19, 20, 37, 38, 55, 56, 87, 88

Offset

1,1

Comments

Aluminium (Z = 13) is referred to as a pre-transition metal, along with the group 1 alkali metals (A099955) and group 2 alkaline earth metals (A099956).

References

P. A. Cox, Instant Notes; Inorganic Chemistry, 2nd edition, Taylor & Francis, 2004, pp. 188-189.

Links

Table of n, a(n) for n=1..13.

Crossrefs

Cf. A099955, A099956.

Sequence in context: A344460 A195589 A339578 * A228236 A344346 A047457

Adjacent sequences: A244002 A244003 A244004 * A244006 A244007 A244008

Keyword

nonn,fini,full

Author

Arkadiusz Wesolowski, Jun 17 2014

Status

approved