摘要: The decay properties of N≃Z nuclei are reviewed, and their relation to nuclear-structure, astrophysics fundamental physics is described. Focussing on direct charged-particle radioactivity β decay, particular emphasis put proton, two-proton a emission, superallowed 0 + transitions, the Gamow-Teller resonance occurring in decays near 1 Sn, β-delayed proton emission 5 7 Zn, γ-delayed 8 Cu, isomer spectroscopy 4 Kr 9 Ag.