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Rutherfordium is a synthetic chemical element; it has symbol Rf and atomic number 104. It is named after physicist Ernest Rutherford. As a synthetic element, it is not found in nature and can only be made in a particle accelerator. It is radioactive; the most stable known isotope, 267 Rf, has a half-life of about 48 minutes.
Rutherfordium (104 Rf) is a synthetic element and thus has no stable isotopes. A standard atomic weight cannot be given. The first isotope to be synthesized was either 259 Rf in 1966 or 257 Rf in 1969. There are 17 known radioisotopes from 252 Rf to 270 Rf (three of which, 266 Rf, 268 Rf, and 270 Rf, are unconfirmed) and several isomers.
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
For the couple’s rare and unexpected appearance, West wore head-to-toe black — trousers, a T-shirt and sunglasses — and though Censori initially complemented him in a black, fur coat, she ...
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Image credits: Jason LaVeris/Getty Images #6 Christina Aguilera. The Candyman hitmaker looked slim when she sported a black skin-tight bodysuit at Barry’s gym in West Hollywood, California, in ...
A few specific predictions on what that might look like from Future Timeline include internet use expanding to 5 billion worldwide, the proliferation of 5G connectivity, 3D printing becoming more ...