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A320507 Atomic numbers of the chemical elements sorted with respect to first ionization energy. 1
55, 87, 37, 19, 103, 11, 89, 56, 88, 3, 71, 59, 60, 58, 57, 61, 62, 63, 38, 49, 65, 91, 66, 13, 95, 31, 104, 96, 67, 94, 90, 68, 81, 20, 64, 69, 92, 39, 97, 70, 93, 98, 99, 100, 21, 101, 40, 102, 23, 41, 24, 72, 22, 42, 43, 83, 50, 44, 82, 25, 45, 47, 28, 12, 29, 75, 27, 73, 32, 26, 74, 14, 5, 46, 84, 51, 76, 48, 52, 78, 77, 79, 85, 4, 30, 34, 33, 16, 80, 53, 15, 86, 6, 35, 54, 17, 1, 8, 36, 7, 18, 9, 10, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
The first ionization energy of an element X is the enthalpy change of X (g) -> X+ (g) + e-.
LINKS
NIST Atomic Spectra Database, Ionization Energies Form
EXAMPLE
The elements with the lowest first ionization energies are caesium (55), francium (87), rubidium (37), potassium (19), etc.
CROSSREFS
Cf. A320506 (first ionization energies).
Chemical elements sorted by: A081098 (melting point), A081099 (boiling point), A081100 (atomic radius), A081101 (covalent radius), A248026 (electronegativity), A248061 (density), A249874 (discovery), this sequence (first ionization energy).
Sequence in context: A245284 A203613 A366848 * A039533 A157484 A230125
KEYWORD
nonn
AUTHOR
Jianing Song, Oct 13 2018
STATUS
approved

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Last modified March 28 16:34 EDT 2024. Contains 371254 sequences. (Running on oeis4.)