nickel57
Nickel57 is a hypothetical isotope of the element nickel. Isotopes are variants of a chemical element that differ in their number of neutrons. Nickel, with the symbol Ni and atomic number 28, typically has several stable isotopes. Nickel57 would refer to a nickel atom with a total of 57 protons and neutrons in its nucleus. Since the atomic number of nickel is 28 (meaning it has 28 protons), nickel57 would contain 29 neutrons (57 total nucleons - 28 protons = 29 neutrons).
As nickel57 is not a commonly referenced or a particularly stable isotope, information regarding its properties