IN a former letter to NATURE (January 20, p. 79) we announced the discovery of a new element with atomic number 72, for which the name hafnium was proposed. Evidence was given that this element is a ...
The previous post examined the dirtiest of the so-called dirty bombs, which, if ever built, would release high-energy radioactivity by converting cobalt-59 into cobalt-60. This post examines an ...
TITANIUM AND ZIRCONIUM have traditionally dominated group 4 chemistry. Hafnium, the third member of this group of early transition metals, has been the odd element out. But not anymore. Steady ...