The element naming controversy involved the first five or six transactinide elements.

In the periodic table, it is a p-block transactinide element.

The transactinide elements are beginning with rutherfordium (atomic number 104).

The transactinide seaborgium is named in his honor.

I guess you have to be dead before you get your own element, even if you are responsible for mapping out the transactinide series.

Rutherfordium is the first transactinide element and the second member of the 6d series of transition metals.

Rutherfordium is the first transactinide element.

Seaborg also proposed the placement of super-heavy elements in the transactinide and superactinide series.

Dubnium is a transactinide element.

Collisions between heavy-ion beams and stationary targets can be made to generate superheavy transactinide elements.

Except for dubnium, even the longest-lasting isotopes of transactinide elements have extremely short half-lives, measured in seconds, or smaller units.

In later theoretical work, Seaborg proposed the transactinide series spanning elements 104-121 and the superactinide series containing elements 122-153.

In: The 4th International Conference on the Chemistry and Physics of the Transactinide Elements.

The term transactinide is an adjective, and is not commonly used alone as a noun to refer to the transactinide elements.

Ununoctium is the temporary IUPAC name for the transactinide element having the atomic number 118 and temporary element symbol Uuo.

Roentgenium (Rg) belongs to this group of elements based on its electronic configuration, but it is a short-lived transactinide with a 22.8 seconds half-life that has only been observed in laboratory conditions.

The known elements most susceptible to spontaneous fission are the synthetic high-atomic-number actinide elements with odd atomic numbers: mendelevium and lawrencium, and also some of the transactinide very-heavy elements, such as rutherfordium.

Seaborg's subsequent elaborations of the actinide concept theorized a series of superheavy elements in a transactinide series comprising elements 104 through 121 and a superactinide series inclusive of elements 122 through 153.

At the beginning of the story, Seaton accidentally discovers a workable space drive in combining pure copper with a newly discovered [fictional] element "X" (suggested to be a stable transactinide element in the Platinum group) in solution.

In addition to his theoretical work in the development of the actinide concept which placed the actinide series beneath the lanthanide series on the periodic table, Seaborg proposed the placement of super-heavy elements in the transactinide and superactinide series.

For chemical studies to be carried out on a transactinide, at least four atoms must be produced, the half-life of the isotope used must be at least 1 second, and the rate of production must be at least one atom per week.

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.