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Californium is a silvery-white actinide metal [12] with a melting point of 900 ± 30 °C (1,650 ± 50 °F) and an estimated boiling point of 1,743 K (1,470 °C; 2,680 °F). [13] The pure metal is malleable and is easily cut with a knife. Californium metal starts to vaporize above 300 °C (570 °F) when exposed to a vacuum. [14]
Californium(III) oxychloride (CfOCl) was the first californium compound to be discovered. [15] Californium(III) polyborate is unusual in that californium is covalently bound to the borate. [16] Tris(cyclopentadienyl)californium(III) (Cp 3 Cf) presents itself as ruby red crystals.
Kenneth Street Jr. (1920 – 13 March 2006) was an American chemist.He was part of the team that discovered elements 97 and 98 (berkelium and californium) in 1949 and 1950.
A gram of Californium, a radioactive synthetic element discovered at UC Berkeley 108 years after Lopez yanked his gold out of the ground, would bring $27 million. But you’re not going to find ...
“To make californium-252 from a curium target, eight neutrons must be added quickly, which is only possible in a high-flux reactor. The reason is that every time you add a neutron, you’re ...
Californium (98 Cf) is an artificial element, and thus a standard atomic weight cannot be given. Like all artificial elements, it has no stable isotopes. The first isotope to be synthesized was 245 Cf in 1950. There are 20 known radioisotopes ranging from 237 Cf to 256 Cf and one nuclear isomer, 249m Cf.
He discovered together with Glenn T. Seaborg several of the transuranium elements. One of the elements is Californium, which he and several others made. Thompson was also a leader of the research teams that discovered the next three transuranium elements: einsteinium, fermium and mendelevium (atomic numbers 99, 100 and 101). [1]
Synthesis of americium, berkelium, and californium followed soon. Einsteinium and fermium were discovered by a team of scientists led by Albert Ghiorso in 1952 while studying the composition of radioactive debris from the detonation of the first hydrogen bomb. [19]