Ausonium was the name assigned to the element with
atomic numberIn chemistry and physics, the atomic number is the number of protons found in the nucleus of an atom and therefore identical to the charge number of the nucleus. It is conventionally represented by the symbol Z. The atomic number uniquely identifies a chemical element...
93, now known as
neptuniumNeptunium is a chemical element with the symbol Np and atomic number 93. A radioactive metal, neptunium is the first transuranic element and belongs to the actinide series. Its most stable isotope, 237Np, is a by-product of nuclear reactors and plutonium production and it can be used as a...
. It was named after a Greek name of Italy,
Ausonia-Places:Argentina* Ausonia, Argentina, a community in General San Martín Department, CórdobaItaly* Ausonia, Lazio, a comune in the Province of Frosinone-Ships:* German aircraft carrier I , a German aircraft carrier...
.
The same team assigned the name
hesperiumHesperium was the name assigned to the element with atomic number 94, now known as plutonium.It was named in Italian Esperio after a Greek name of Italy, Hesperia, "the land of the West"....
to element 94, after
HesperiaItaly , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...
, a poetic name of Italy.
The discovery of the element, now discredited, was made by
Enrico FermiEnrico Fermi was an Italian-born, naturalized American physicist particularly known for his work on the development of the first nuclear reactor, Chicago Pile-1, and for his contributions to the development of quantum theory, nuclear and particle physics, and statistical mechanics...
and a team of scientists at the
University of RomeThe Sapienza University of Rome, officially Sapienza – Università di Roma, formerly known as Università degli studi di Roma "La Sapienza", is a coeducational, autonomous state university in Rome, Italy...
in 1934. In the same year
Ida NoddackIda Noddack , née Ida Tacke, was a German chemist and physicist. She was the first to mention the idea of nuclear fission in 1934. With her husband Walter Noddack she discovered element 75 rhenium...
already presented alternative explanations for the experimental results of Fermi. Following the discovery of
nuclear fissionIn nuclear physics and nuclear chemistry, nuclear fission is a nuclear reaction in which the nucleus of an atom splits into smaller parts , often producing free neutrons and photons , and releasing a tremendous amount of energy...
in 1938, it was realized that Fermi's discovery was actually a mixture of
bariumBarium is a chemical element with the symbol Ba and atomic number 56. It is the fifth element in Group 2, a soft silvery metallic alkaline earth metal. Barium is never found in nature in its pure form due to its reactivity with air. Its oxide is historically known as baryta but it reacts with...
,
kryptonKrypton is a chemical element with the symbol Kr and atomic number 36. It is a member of Group 18 and Period 4 elements. A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in the atmosphere, is isolated by fractionally distilling liquified air, and is often used with other...
, and other elements. The actual element was discovered several years later, and assigned the name neptunium.
Fascist authorities wanted one of the elements to be named
littorio after the Roman
lictorThe lictor was a member of a special class of Roman civil servant, with special tasks of attending and guarding magistrates of the Roman Republic and Empire who held imperium, the right and power to command; essentially, a bodyguard...
es who carried the
fascesFasces are a bundle of wooden sticks with an axe blade emerging from the center, which is an image that traditionally symbolizes summary power and jurisdiction, and/or "strength through unity"...
, a symbol appropriated by Fascism.