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The upper limit for the E°(Lr 3+ → Lr 2+) couple was predicted to be −0.44 V: the values for E°(Lr 3+ → Lr) and E°(Lr 4+ → Lr 3+) are predicted to be −2.06 V and +7.9 V. [70] The stability of the group oxidation state in the 6d transition series decreases as Rf IV > Db V > Sg VI, and lawrencium continues the trend with Lr III being ...
249 Cf(15 N,αxn) 260−x Lr (x=2,3) This reaction was studied in 1971 by the team at the LBNL. They were able to detect an activities assigned to 258 Lr and 257 Lr from the α2n and α3n and channels.
That machine was used in the discovery of elements 102–106 (102, nobelium; 103, lawrencium; 104, rutherfordium; 105, dubnium and 106, seaborgium), each produced and identified on the basis of only a few atoms. The discovery of each successive element was made possible by the development of innovative techniques in robotic target handling ...
The 7p 3/2 orbital is still relativistically destabilized, potentially giving these elements larger ionic radii and perhaps even being able to participate chemically. In this region, the 8p electrons are also relativistically stabilized, resulting in a ground-state 8s 2 8p 1 valence electron configuration for element 121.
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260 Lr synth 3.0 min: ... ionization energy 2 ionization energy 3. ... First isolation () Discovery and first isolation (1 or 2 dates) Named by () ...
Group 3 is the first group of transition metals in the periodic table.This group is closely related to the rare-earth elements.It contains the four elements scandium (Sc), yttrium (Y), lutetium (Lu), and lawrencium (Lr).