Nuclear Equation Symbols. The subscripts and superscripts are necessary for balancing nuclear equations but are usually optional in other circumstances. Z atomic number number of protons number of electrons a z n.
N number of neutrons. A relative atomic mass mass number sum of protons and neutrons. The nuclear equation last updated.
The mass number appears as a superscript also preceding the symbol.
N number of neutrons. Alpha particles 4 2he 2 4 he also represented by the symbol 4 2α 2 4 α are high energy helium nuclei. The subscripts and superscripts are necessary for balancing nuclear equations but are usually optional in other circumstances. How much will remain in the body after 2 86 days assuming that radioactive decay is the only path for removal of the isotope from the body.