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A058317 Number of neutrons in atoms of the n-th element of the periodic table (for the most abundant isotope). 3
0, 2, 4, 5, 6, 6, 7, 8, 10, 10, 12, 12, 14, 14, 16, 16, 18, 22, 20, 20, 24, 26, 28, 28, 30, 30, 32, 31, 35, 35, 39, 41, 42, 45, 45, 48, 48, 50, 50, 50, 51, 52, 54, 55, 57, 58, 60, 61, 64, 66, 69, 71, 76, 74, 77, 78, 81, 82, 82, 82, 84, 84, 88, 89, 93, 94, 97, 98, 99, 100, 103 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Y. Bentor, Periodic Table: Neutrons, Chemical Elements.com.
M. Winter, The periodic table of the elements, WebElements.
EXAMPLE
a(79)=118 because the 79th element is gold, whose only naturally occurring isotope is Au-197, which has 79 protons, 79 electrons and 118 neutrons.
CROSSREFS
Sequence in context: A059583 A086370 A083788 * A278761 A287076 A344587
KEYWORD
nonn,fini
AUTHOR
Labos Elemer, Dec 12 2000
EXTENSIONS
a(38) updated by Sean A. Irvine, Aug 24 2021
STATUS
approved

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Last modified April 19 23:15 EDT 2024. Contains 371798 sequences. (Running on oeis4.)