Nuclides with atomic number of 51 but with different mass numbers
Isotopes of antimony (51Sb)
Main isotopes[1]
Decay
abundance
half-life (t1/2)
mode
product
121Sb
57.2%
stable
123Sb
42.8%
stable
125Sb
synth
2.7576 y
β−
125Te
Standard atomic weight Ar°(Sb)
121.760±0.001[2]
121.76±0.01 (abridged)[3]
view
talk
edit
Antimony (51Sb) occurs in two stable isotopes, 121Sb and 123Sb. There are 35 artificial radioactive isotopes, the longest-lived of which are 125Sb, with a half-life of 2.75856 years; 124Sb, with a half-life of 60.2 days; and 126Sb, with a half-life of 12.35 days. All other isotopes have half-lives less than 4 days, most less than an hour.
There are also many isomers, the longest-lived of which is 120m1Sb with a half-life of 5.76 days.
With the exception of beryllium, antimony is the lightest element observed to have isotopes capable of undergoing alpha decay, with the isotope 104Sb being seen to undergo this mode of decay. Some lighter elements, namely those in the vicinity of 8Be, have isotopes with delayed alpha emission (following proton or beta emission) as a rare branch.
^Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.
^Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry. doi:10.1515/pac-2019-0603. ISSN 1365-3075.
and 28 Related for: Isotopes of antimony information
Antimony (51Sb) occurs in two stable isotopes, 121Sb and 123Sb. There are 35 artificial radioactive isotopes, the longest-lived of which are 125Sb, with...
density of 6.697 g/cm3, but the weak bonding between the layers leads to the low hardness and brittleness ofantimony. Antimony has two stable isotopes: 121Sb...
reach 50%. As an extreme example, the half-life of the isotope bismuth-209 is 2.01×1019 years. The isotopes in beta-decay stable isobars that are also stable...
to as stable isotopes or stable nuclides. For example, 14 C is a radioactive form of carbon, whereas 12 C and 13 C are stable isotopes. There are about...
A table or chart of nuclides is a two-dimensional graph ofisotopesof the elements, in which one axis represents the number of neutrons (symbol N) and...
elements, they are usually termed stable isotopes. The 80 elements with one or more stable isotopes comprise a total of 251 nuclides that have not been known...
11 have 5 stable isotopes, 9 have 4 stable isotopes, 5 have 3 stable isotopes, 16 have 2 stable isotopes, and 26 have 1 stable isotope. Additionally, about...
trihalides. Antimony forms antimony(III) oxide and antimonite but not oxyacids. Its trihalides, antimony trifluoride, antimony trichloride, antimony tribromide...
has isotopes that are not radioactive, these are termed "stable" isotopes. All of the known stable isotopes occur naturally (see primordial isotope). The...
energy can photodisintegrate an atom of beryllium-9 (100% of natural beryllium, its only stable isotope): Antimony-124 is assembled with beryllium to make...
list can instead be found in Template:Navbox element isotopes. The symbols for the named isotopesof hydrogen, deuterium (D), and tritium (T) are still...
have to go through isotopes separation to remove the 115, 117 and 119 tin isotopes. Combined, these three isotopes make up about 17% of natural tin but represent...
Tin (50Sn) is the element with the greatest number of stable isotopes (ten; three of them are potentially radioactive but have not been observed to decay)...
cannot be given. Like all artificial elements, it has no stable isotopes. The first isotope to be synthesized was 245Cf in 1950. There are 20 known radioisotopes...
of the pnictogen bismuth. Moscovium is calculated to have some properties similar to its lighter homologues, nitrogen, phosphorus, arsenic, antimony,...
occurring carbon-14 isotope as an isotopic label. Isotopesof a chemical element differ only in the mass number. For example, the isotopesof hydrogen can be...
days) and 47Ca (half-life 4.54 days). Isotopes lighter than 42Ca usually undergo beta plus decay to isotopesof potassium, and those heavier than 44Ca...
on Isotopes Periodic Table—Neon at the U.S. Geological Survey, by Eric Caldwell, posted January 2004, retrieved 10 February 2011 "Neon: Isotopes". Softciências...
element with isotopes known to undergo alpha decay, antimony being the lightest. The atomic mass of tellurium (127.60 g·mol−1) exceeds that of iodine (126...
technetium, one of the two elements until lead that has no stable isotopes (along with promethium), as well as molybdenum and iodine, two of the heaviest...
isotope, bismuth-209, was found in 2003 to decay very slowly.) The four stable isotopesof lead could theoretically undergo alpha decay to isotopes of...
post-transition metal and one of the pnictogens, with chemical properties resembling its lighter group 15 siblings arsenic and antimony. Elemental bismuth occurs...
trace isotopes 237U and 239U exclusively undergo beta decay, with respective half-lives of 6.752 days and 23.45 minutes. In total, 28 isotopesof uranium...
aimed at a mixed-isotope californium target containing 249Cf, 250Cf, and 251Cf, with the aim of producing the heavier oganesson isotopes 295Og and 296Og...
element (after astatine). Francium's isotopes decay quickly into astatine, radium, and radon. The electronic structure of a francium atom is [Rn] 7s1; thus...
expected to fall within the range of the island of stability, potentially conferring additional stability on some isotopes, especially 306Ubb which is expected...
source activity (the radioactive isotopes are both burned and generated in neutron flux). Sb-Be photoneutron source; antimony becomes radioactive in the reactor...
half-life of about 5.1 minutes. The isotopes 280Rg and 281Rg have also been reported to have half-lives over a second. The remaining isotopes have half-lives...
Global Information