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A058318 Number of energy levels in atoms of n-th element of periodic table. 1
1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..105.

Y. Bentor, Chemical Elements.Com

M. Winter, WebElements Periodic Table

EXAMPLE

Elements 2,8,8,18,18,32,26 have 1,2,3,4,5,6,7 energy levels; The 79th term corresponds to gold of a(79)=6 energy levels with 2,8,18,32,18,1 electrons resp.

CROSSREFS

Cf. A007656, A058317.

Sequence in context: A079416 A135664 A261585 * A133878 A132292 A110656

Adjacent sequences:  A058315 A058316 A058317 * A058319 A058320 A058321

KEYWORD

nonn,fini

AUTHOR

Labos Elemer, Dec 12 2000

STATUS

approved

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Last modified July 16 23:49 EDT 2019. Contains 325092 sequences. (Running on oeis4.)