Noun
A rare element of the carbon-silicon group, intermediate between the metals and nonmetals, obtained from the mineral zircon as a dark sooty powder, or as a gray metallic crystalline substance. Symbol Zr. Atomic weight, 90.4.
Source: Webster's dictionary110 Zr, the heaviest isotope of zirconium, is the most radioactive, with an estimated half-life of 30 milliseconds. Source: Internet
96 Zr has a half-life of 2.4×10 19 years, and is the longest-lived radioisotope of zirconium. Source: Internet
Another air separation method is forcing air to dissolve through ceramic membranes based on zirconium dioxide by either high pressure or an electric current, to produce nearly pure Omain gas. Source: Internet
Extraction experiments from hydrochloric acid solutions using isotopes of rutherfordium, hafnium, zirconium, as well as the pseudo-group 4 element thorium have proved a non-actinide behavior for rutherfordium. Source: Internet
At the time of his formulation in 1871, Mendeleev believed that the elements were ordered by their atomic masses and placed lanthanum (element 57) in the spot below zirconium. Source: Internet
A fabulous supplier of alternative metal wedding bands, Lashbrook crafts rings in a variety of traditional golds and platinum, plus titanium, cobalt chrome, black zirconium, Damascus steel and more alternative metals. Source: Internet