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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 .
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.
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:
James Andrew Harris (March 26, 1932 – December 12, 2000) was an American radiochemist who was involved in the discovery of elements 104 and 105 (rutherfordium and dubnium, respectively). Harris was the head of the Heavy Isotopes Production Group, part of the Nuclear Chemistry Division of the University of California, Berkeley.
The chemical element rutherfordium (104 Rf) was named after him in 1997. Early life and education Ernest Rutherford was born on 30 August 1871 in Brightwater , a town near Nelson , New Zealand. [ 14 ]
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".
If it seems like you and everyone around you is getting sick this winter, you're not wrong. Experts say this is the worst flu season in the U.S. in more than a decade and cases are still trending ...
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