login
This site is supported by donations to The OEIS Foundation.

 

Logo

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A058317 Number of neutrons in atoms of n-th element of periodic table (for 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, 48, 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

Table of n, a(n) for n=1..71.

Y. Bentor, Chemical Elements.Com

Y. Bentor, Periodic Table:Neutrons

M. Winter, WebElements Periodic Table

EXAMPLE

a(79): gold, the 79th element has 79 protons,79 electrons and 118 neutrons, valid for Au-197, stable isotope.

CROSSREFS

Cf. A007656, A058318.

Sequence in context: A059583 A086370 A083788 * A278761 A287076 A100006

Adjacent sequences:  A058314 A058315 A058316 * A058318 A058319 A058320

KEYWORD

nonn,fini

AUTHOR

Labos Elemer, Dec 12 2000

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 18 23:05 EST 2019. Contains 319282 sequences. (Running on oeis4.)