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Rutherfordium is a synthetic chemical element; ... but properties of rutherfordium metal remain unknown and only predictions are available. Chemical
Group 4 is the second group of transition metals in the periodic table. It contains only the four elements titanium (Ti), zirconium (Zr), hafnium (Hf), and rutherfordium (Rf). ). The group is also called the titanium group or titanium family after its lightest me
Ruthenium is the only 4d transition metal that can assume the group oxidation state +8, and even then it is less stable there than the heavier congener osmium: this is the first group from the left of the table where the second and third-row transition metals display notable differences in chemical behavior.
A synthetic element is one of 24 known chemical elements that do not occur naturally on Earth: they have been created by human manipulation of fundamental particles in a nuclear reactor, a particle accelerator, or the explosion of an atomic bomb; thus, they are called "synthetic", "artificial", or "man-made".
Heavy metals is a controversial and ambiguous term [2] for metallic elements with relatively high densities, atomic weights, or atomic numbers.The criteria used, and whether metalloids are included, vary depending on the author and context and it has been argued that the term "heavy metal" should be avoided.
The Joint Institute for Nuclear Research in Dubna (then USSR, today Russia) named element 104 kurchatovium (Ku) in honor of Igor Kurchatov, father of the Soviet atomic bomb, while the University of California, Berkeley, US, named element 104 rutherfordium (Rf) in honor of Ernest Rutherford.
Rutherfordium: Dubnium: Seaborgium: Bohrium: Hassium: Meitnerium: Darmstadtium: Roentgenium: ... This is a similar pattern to those of the early transition metal ...
rutherfordium-263: 15 900 lead-195 ~15 ~900 polonium-201: 15.3 920 10 3 seconds (kiloseconds) isotope half-life minutes 10 3 seconds curium-251: 16.8 1.01 uranium-242: