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Of these natural isotopes, 90 Zr is the most common, making up 51.45% of all zirconium. 96 Zr is the least common, comprising only 2.80% of zirconium. [10] Thirty-three artificial isotopes of zirconium have been synthesized, ranging in atomic mass from 77 to 114. [10] [17] 93 Zr is the longest-lived artificial isotope, with a half-life of 1.61 ...
This is a list of chemical elements and their atomic properties, ... atomic mass Electronegativity (Pauling) First Ionization ... Zr: 91.224(2) 1.33: 6.6339 ...
Naturally occurring zirconium (40 Zr) is composed of four stable isotopes (of which one may in the future be found radioactive), and one very long-lived radioisotope (96 Zr), a primordial nuclide that decays via double beta decay with an observed half-life of 2.0×10 19 years; [4] it can also undergo single beta decay, which is not yet observed, but the theoretically predicted value of t 1/2 ...
Zirconium is a chemical element with the symbol Zr and atomic number 40. The name of zirconium is taken from the mineral zircon. Its atomic mass is 91.224.
A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z). [ 1 ] The definitive visualisation of all 118 elements is the periodic table of the elements , whose history along the principles of the periodic law was one of the founding ...
The abundance of the group 4 metals decreases with increase of atomic mass. Titanium is the seventh most abundant metal in Earth's crust and has an abundance of 6320 ppm, while zirconium has an abundance of 162 ppm and hafnium has only an abundance of 3 ppm. [47]
When atomic mass is shown, it is usually the weighted average of naturally occurring isotopes; but if no isotopes occur naturally in significant quantities, the mass of the most stable isotope usually appears, often in parentheses. [8] In the standard periodic table, the elements are listed in order of increasing atomic number.
There are no stable nuclides with mass numbers 5 or 8. There are stable nuclides with all other mass numbers up to 208 with the exceptions of 147 and 151, which are represented by the very long-lived samarium-147 and europium-151. (Bismuth-209 was found to be radioactive in 2003, but with a half-life of 2.01 × 10 19 years.)