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A248061 Element numbers of the chemical elements sorted with respect to density. 7
1, 2, 10, 7, 8, 9, 18, 17, 36, 54, 86, 3, 19, 11, 37, 20, 12, 15, 4, 87, 55, 16, 6, 14, 5, 38, 13, 21, 35, 56, 39, 22, 34, 53, 118, 63, 32, 88, 33, 31, 23, 57, 52, 40, 51, 58, 59, 70, 85, 60, 30, 24, 117, 61, 50, 49, 25, 62, 26, 64, 65, 66, 41, 48, 67, 99, 27, 28, 29, 68, 84, 69, 100, 83, 71, 102, 89, 42, 101, 47, 82, 43, 90, 81, 46, 44, 45, 116, 72, 115, 96, 80, 95, 114, 97, 98, 91, 103, 113, 73, 92, 74, 79, 94, 93, 75, 78, 77, 76, 104, 112, 111, 105, 110, 106, 107, 109, 108 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

The densities are measured at standard atmospheric pressure. The densities of astatine (85), francium (87), fermium (100) and above are only estimated due to the short half-life of these elements. - Jianing Song, Sep 30 2018

LINKS

Table of n, a(n) for n=1..118.

Wikipedia, List of chemical elements.

EXAMPLE

The elements with the lowest densities are hydrogen (1), helium (2), neon (10), etc.

CROSSREFS

Chemical elements sorted by: A081098 (melting point), A081099 (boiling point), A081100 (atomic radius), A081101 (covalent radius), A248026 (electronegativity), this sequence (density), A249874 (discovery).

Sequence in context: A211365 A213135 A037187 * A267500 A300016 A166542

Adjacent sequences:  A248058 A248059 A248060 * A248062 A248063 A248064

KEYWORD

nonn

AUTHOR

Bo Lee, Sep 30 2014

EXTENSIONS

Edited by Jianing Song, Sep 30 2018

STATUS

approved

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Last modified January 23 22:16 EST 2020. Contains 331177 sequences. (Running on oeis4.)