This transuranic element of the actinide series is located in the periodic table below the lanthanide element europium, and thus by analogy was named after another continent, America.

All but one of the actinides are f-block elements, corresponding to the filling of the 5f electron shell ; lawrencium, a d-block element, is also generally considered an actinide.

Berkelium (, less commonly ), is a transuranic radioactive chemical element with the symbol Bk and atomic number 97, a member of the actinide and transuranium element series.

Berkelium is a soft, silvery-white, radioactive actinide metal.

In the periodic table, it is located to the right of the actinide curium, to the left of the actinide californium and below the lanthanide terbium with which it shares many similarities in physical and chemical properties.

The second important berkelium isotope, berkelium-247, is an alpha-emitter, as are most actinide isotopes.

Curium is a hard, dense, silvery metal with a relatively high melting point and boiling point for an actinide.

It is an actinide element, the sixth transuranium element to be synthesized, and has the second-highest atomic mass of all the elements that have been produced in amounts large enough to see with the unaided eye ( after einsteinium ).

Californium is a silvery white actinide metal with a melting point of 900 ± 30 ° C and an estimated boiling point of 1745 ° C.

It is the seventh transuranic element, and an actinide.

It is a member of the actinide series.

PuP is one actinide pnictide that is a paramagnet and has cubic symmetry at room temperature, but upon cooling undergoes a lattice distortion to tetragonal when cooled to below its T < sub > c </ sub > = 125 K. PuP has an easy axis of < 100 >, so that

which is the largest strain in any actinide compound.

In the periodic table of the elements, it is a period 7 d-block element and the last element of the actinide series.

Further experiments have demonstrated an actinide chemistry for the new element, so by 1970 it was known that lawrencium is the last actinide.

However, lawrencium is classified as an actinide element according to the IUPAC recommendations.

A metallic radioactive transuranic element in the actinide series, mendelevium is usually synthesized by bombarding einsteinium with alpha particles.

A radioactive metal, neptunium is the first transuranic element, and belongs to the actinide series.

In actual practice, the f-block is also included in the form of the lanthanide and actinide series.

Uranium ( ) is a silvery-white metallic chemical element in the actinide series of the periodic table, with symbol U and atomic number 92.

Depending on what a nuclear reactor is fueled with, the actinide composition in the SNF will be different.

The actinide or actinoid ( IUPAC nomenclature ) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium.

The actinide series derives its name from the group 3 element actinium.

The three naturally-occurring actinide alpha decay chains given below — thorium, uranium / radium ( from U-238 ), and actinium ( from U-235 )— each ends with its own specific lead isotope ( Pb-208, Pb-206, and Pb-207 respectively ).

The same year, Rockwell received Industrial Research Magazine's IR-100 award for a process to remove actinide contamination from wastewater at the plant.

The actinide series are the second row of the f-block ( 5f series ) and comprise the elements from Actinium to Lawrencium.

The fertile material in fast reactor fuel can be depleted uranium ( mostly U-238 ), natural uranium, or reprocessed uranium from spent fuel from traditional light water reactors, and even include nonfissile isotopes of plutonium and minor actinide isotopes.

* Much cleaner: as a full recycle system, the discharge wastes from the reactor are predominately fission products, most of which have relatively short half lives compared to longer-lived actinide wastes.

It is normal to extract both the uranium and plutonium from the majority of the fission products, but it is not possible to get an acceptable separation of the fission products from the actinide products with a single extraction cycle.

Chemistry Nobelist Glenn T. Seaborg who first proposed the actinide concept which led to the acceptance of the actinide series also proposed the existence of a transactinide series ranging from element 104 to 121 and a superactinide series approximately spanning elements 122 to 153.

Actinium gave the name to the actinide series, a group of 15 similar elements between actinium and lawrencium in the periodic table.

At the time, the periodic table had been restructured by Seaborg to its present layout, containing the actinide row below the lanthanide one.

This led to americium being located right below its twin lanthanide element europium ; it was thus by analogy named after another continent, America: " The name americium ( after the Americas ) and the symbol Am are suggested for the element on the basis of its position as the sixth member of the actinide rare-earth series, analogous to europium, Eu, of the lanthanide series.

The name choice for element 97 followed the previous tradition of the Californian group to draw an analogy between the newly discovered actinide and the lanthanide element positioned above it in the periodic table.

" This tradition ended on berkelium, though, as the naming of the next discovered actinide, californium, was not related to its lanthanide analogue dysprosium, but after the discovery place.

This element of the actinide series was named after Marie Skłodowska-Curie and her husband Pierre Curie-both were known for their research on radioactivity.

Other isotopes are synthesized in various laboratories, but at much smaller amounts, by bombarding heavy actinide elements with light ions.

It was the last element of the actinide series to be produced.

The elution of Md just before Fm in the elution sequence of the trivalent actinides from the cation-exchange resin column, confirmed this prediction.

Reversed-phase chromatography is an elution procedure used in liquid chromatography in which the mobile phase is significantly more polar than the stationary phase.

The cation-exchange resin column as well as the HDEHP solvent extraction column elution date is consistent with a trivalent state for Md and an ionic radius smaller than Fm.

( Blue dextran is not recommended for Vo determination because it is heterogeneous and may give variable results ) The elution volumes of the standards are divided by the elution volume of the thyroglobulin ( Ve / Vo ) and plotted against the log of the standards ' molecular weights.

Isocratic elution is typically effective in the separation of sample components that are not very dissimilar in their affinity for the stationary phase.

In gradient elution the composition of the mobile phase is varied typically from low to high eluting strength.

The eluting strength of the mobile phase is reflected by analyte retention times with high eluting strength producing fast elution (= short retention times ).

This technique is used to achieve unique selectivity for hydrophilic compounds, showing normal phase elution using reversed-phase solvents.

A separation in which the mobile phase composition is changed during the separation process is described as a gradient elution.

In isocratic elution, the selectivity does not change if the column dimensions ( length and inner diameter ) change – that is, the peaks elute in the same order.

The internal diameter ( ID ) of an HPLC column is an important parameter that influences the detection sensitivity and separation selectivity in gradient elution.

Data of this type is very common in chemistry, for example a liquid-chromatography / mass spectrometry ( LC-MS ) system generates a large matrix of data ( elution time versus m / z ) for each sample analyzed.

An elution with a low pH buffer or a more gentle, high salt elution buffer is then used to recover purified antibody from the support.

First of all, it has a well-defined separation time due to the fact that there is a final elution volume for all unretained analytes.

Binding to the solid phase may be achieved by column chromatography whereby the solid medium is packed onto a column, the initial mixture run through the column to allow setting, a wash buffer run through the column and the elution buffer subsequently applied to the column and collected.

Sometimes a hybrid method is employed, the binding is done by the batch method, then the solid phase with the target molecule bound is packed onto a column and washing and elution are done on the column.

The eluate is collected into a neutral tris or phosphate buffer, to neutralize the low pH elution buffer and halt any degradation of the antibody's activity.