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A099956 Atomic numbers of the alkaline earth metals. 9
4, 12, 20, 38, 56, 88 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

12 is the atomic number of magnesium.

CROSSREFS

Cf. A099955, alkali metals; A101648, metalloids; A101647, nonmetals (except halogens and noble gases); A097478, halogens; A018227, noble gases; A101649, poor metals.

Sequence in context: A057317 A008068 A008183 * A301066 A008092 A316299

Adjacent sequences:  A099953 A099954 A099955 * A099957 A099958 A099959

KEYWORD

nonn,fini,full

AUTHOR

Parthasarathy Nambi, Nov 12 2004

STATUS

approved

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Last modified May 23 03:02 EDT 2019. Contains 323507 sequences. (Running on oeis4.)