Einsteinium is the element with the highest atomic number which has been observed in macroscopic quantities in its pure form, and this was the common short-lived isotope einsteinium-253.

Einsteinium was discovered as the debris of the first hydrogen bomb explosion in 1952, and named after Albert Einstein.

Einsteinium ( ) is a synthetic element with the symbol Es and atomic number 99.

Einsteinium is a soft, silvery, paramagnetic metal.

Einsteinium was first observed in the fallout from the Ivy Mike nuclear test.

Einsteinium was first identified in December 1952 by Albert Ghiorso and co-workers at the University of California, Berkeley in collaboration with the Argonne and Los Alamos National Laboratories, in the fallout from the Ivy Mike nuclear test.

| E || Einsteinium || 99 || Current symbol is Es.

Einsteinium ( Es ) is an artificial element, and thus a standard atomic mass cannot be given.

Because spontaneous fission was also observed in the fraction containing fermium, the α-bombardment of < sup > 253 </ sup > Es produced < sup > 256 </ sup > Md.

The even shorter half-life element fermium has also been suggested

It is the heaviest element that can be formed by neutron bombardment of lighter elements, and hence the last element that can be prepared in macroscopic quantities, although pure fermium metal has not yet been prepared.

The names for the chemical elements 104 to 106 were the subject of a major controversy starting in the 1960s, described by some nuclear chemists as the Transfermium Wars because it concerned the elements following fermium ( element 100 ) on the periodic table.

Some < sup > 238 </ sup > U atoms, however, could absorb another two neutrons ( for a total of 17 ), resulting in < sup > 255 </ sup > Es, as well as in the < sup > 255 </ sup > Fm isotope of another new element, fermium .< ref >< sup > 254 </ sup > Es, < sup > 254 </ sup > Fm and < sup > 253 </ sup > Fm would not be produced because of lack of beta decay in < sup > 254 </ sup > Cf and < sup > 253 </ sup > Es </ ref > The discovery of the new elements and the associated new data on multiple neutron capture were initially kept secret on the orders of the U. S. military until 1955 due to Cold War tensions and competition with Soviet Union in nuclear technologies.

Produced by intensely concentrated neutron flux about the detonation site were two new elements, einsteinium and fermium.

Like all synthetic elements, isotopes of fermium are extremely radioactive and are considered highly toxic.

In 1955, Argonne chemists co-discovered the elements einsteinium and fermium, elements 99 and 100 in the periodic table.

In 1953, in a collaboration with Argonne Lab, Ghiorso and collaborators sought and found elements 99 ( einsteinium and 100 ( fermium ), identified by their characteristic radiation in dust collected by airplanes from the first thermonuclear explosion ( the Mike test ).

Several awards, concepts, and institutions are named after Fermi, such as the Enrico Fermi Award, the Enrico Fermi Institute, the Fermi National Accelerator Laboratory, the Fermi Gamma-ray Space Telescope, the Enrico Fermi Nuclear Generating Station, a class of particles called fermions, the synthetic element fermium, and many more.

** 100. fermium, Fm, named after Enrico Fermi, the physicist who produced the first controlled chain reaction ( 1952 ).

They were able to detect alpha decays from fermium isotopes, assigned as descendants of the decay of < sup > 262 </ sup > Hs.

* A synthetic element isolated from the debris of the 1952 Ivy Mike nuclear test was named fermium, in honor of Fermi's contributions to the scientific community.

Owing to the small amounts of produced fermium and its short half-life, there are currently no uses for it outside of basic scientific research.

The first element synthesized that does not occur naturally was einsteinium in 1952, followed by fermium, mendelevium, lawrencium, and nobelium.

| Ct || Centurium || 100 || Proposed name for fermium.

The mudwagon had caught fire also.

This desire, I went on, growing voluble as my conviction was aroused, had mounted at such a rate recently that I now found its realization necessary not only to my physical but also to my spiritual wellbeing.

Foster had brought extra clothing also.

Dill had come up also.

He was asking had it been she who left the love note in his sheets ( she also served as maid ) when he saw the Grafin followed by a stately blond girl approaching his table.

She began to watch a blonde-haired man, also in shorts, standing right at the rear of the wrecked car in the one spot that most of the crowd had detoured slightly.

His superiors had also preached this, saying it was the way for eternal honor.

Wet also were the marine's fatigues and the face had an oily film.

Yet, after Rousseau had given the social contract a new twist with his notion of the General Will, the same philosophy, it may be said, became the idea source of the French Revolution also.

Helion, however, clung to the belief that `` in escaping from the Stalag I had also escaped from Abstraction ''.

And just as `` Laurie '' Lawrence was first attracted to bright Jo March, who found him immature by her high standards, and then had to content himself with her younger sister Amy, so Joe Jastrow, who had also been writing Henrietta before he came to Johns Hopkins, had to content himself with her younger sister, pretty Rachel.

It also implied that Paul Bang-Jensen had been irresponsible.

The Indians who came aboard ship to collect the mail also interested her greatly, even if she was suitably shocked, according to the customs of the society in which she had been reared, to find them `` naked, except a piece of cotton cloth wrapped around their middle ''.

From his playmates in Savannah, Mercer had picked up, along with a soft Southern dialect, traces also of the Gullah dialects of Africa.

This 1930 edition also had songs in it by Vernon Duke and Ira Gershwin, by E. Y. Harburg and Duke, and by Harry Myers.

He had also mastered the Cossack tongue.

It had been whispered privately that she had smiled in the congregation, and the Governor Prence sent to knoe her business, and command, after punishment as the bench see fit, her departure and also anyone who brought her to the place from which she came ' ''.

That fall he submitted to Professor Baker the first acts and outlines of the following acts of several plays, six of them, according to some of his associates, and he also worked on a play that he first called Niggertown, the material for which he had collected during the summer at home.

The younger men, Vere, and Pembroke, who was also Edward's cousin and whose Lusignan blood gave him the swarthy complexion that caused Edward of Carnarvon's irreverent friend, Piers Gaveston, to nickname him `` Joseph the Jew '', were relatively new to the game of diplomacy, but Pontissara had been on missions to Rome before, and Hotham, a man of great learning, `` jocund in speech, agreeable to meet, of honest religion, and pleasing in the eyes of all '', and an archbishop to boot, was as reliable and experienced as Othon himself.

Mr. Burlingham, -- `` C.C.B. '' -- wrote to me once about an old friend of mine, S. K. Ratcliffe, whom I had first met in London in 1914 and who also came out for a week-end in Weston.

He had also sampled various special fields of learning, being unable to miss some study of divinity, Justinian ( law ), and Galen ( medicine ).

He had also learned to dispute extempore remarkably well, the main evidence for which of course is the presence of his name in the honors list of 1628/29.