Naturally
121Isotopes of niobium — Naturally occurring niobium (Nb), element 41, is composed of one stable isotope (93Nb). 93Nb is the lightest nuclide theoretically susceptible to spontaneous fission, and although this has never been observed, it makes niobium theoretically the… …
122Isotopes of zirconium — Naturally occurring zirconium (Zr) is composed of four stable isotopes, and one extremely long lived radioisotope (96Zr), which decays via double beta decay with the observed half life of 2.0×1019 years [http://www.nndc.bnl.gov/bbdecay/list.html] …
123Isotopes of zinc — Naturally occurring zinc (Zn) is composed of the 5 stable isotopes 64Zn, 66Zn, 67Zn, 68Zn, and 70Zn with 64Zn being the most abundant (48.6% natural abundance). Twenty one radioisotopes have been characterised with the most abundant and stable… …
124Isotopes of nickel — Naturally occurring nickel (Ni) is composed of five stable isotopes; 58 Ni, 60 Ni, 61 Ni …
125Isotopes of cobalt — Naturally occurring cobalt (Co) is composed of 1 stable isotope, 59Co. 28 radioisotopes have been characterized with the most stable being 60Co with a half life of 5.2714 years, 57Co with a half life of 271.79 days, 56Co with a half life of 77.27 …
126Isotopes of manganese — Naturally occurring manganese (Mn) is composed of 1 stable isotope; 55Mn. 25 radioisotopes have been characterized with the most stable being 53Mn with a half life of 3.7 million years, 54Mn with a half life of 312.3 days, and 52Mn with a half… …
127Isotopes of chromium — Naturally occurring chromium (Cr) is composed of four stable isotopes; 50Cr, 52Cr, 53Cr, and 54Cr with 52Cr being the most abundant (83.789% natural abundance). 50Cr is suspected of decaying by β+β+ to 50Ti with a half life of (more than)… …
128Isotopes of vanadium — Naturally occurring vanadium (V) is composed of one stable isotope 51V and one radioactive isotope 50V with a half life of 1.5×1017 years. 24 artificial radioisotopes have been characterized (in the range of mass number between 40 and 65) with… …
