Articles about 63 29 cu
Copper is a metallic element with the chemical symbol Cu. Its atomic number is 29, and its mass number (which is the sum of protons and neutrons) is 63. Neutrons contribute to the mass of atoms but do not have the same binding energy as protons, so nuclei with more neutrons than protons have less total mass than nuclei with equal numbers of protons and neutrons.
American Elements manufactures over 250 stable copper metal isotopic products for non-radiological labeling applications, nuclear fission production of medical radioisotopes, and other research needs. This material is available in a variety of grades and forms including rod, pellets, pieces, granules, and sputtering targets.