Mendelevium -256 and mendelevium-258 what is the difference between the nuclei of these two isotopes?
The difference between mendelevium-256 and mendelevium-258 lies in their atomic mass, with mendelevium-256 having 256 nucleons (protons and neutrons) and mendelevium-258 having 258 nucleons. This means that mendelevium-258 has two more neutrons in its nucleus compared to mendelevium-256.