摘要: Abstract The available experimental results for nuclei in the mass chain A = 173 are summarized. evaluated data compared with theory, where possible, and arguments spin, parity, Nilsson-state assignments given. probable discontinuity Nilsson ground-state systematics is noted tantalum, consistent strong beta transitions to a 1/2 − [521] configuration Hf. Similar decay properties were observed 171 Ta (74HoHa).