Scandium occurs in nature as a single isotope, scandium-45. Neutron irradiation produces scandium-46, a emitter with

Question:

Scandium occurs in nature as a single isotope, scandium-45. Neutron irradiation produces scandium-46, a β emitter with a half-life of 83.8 days. If the initial activity is 7.0 × 10⁴ dpm, draw a graph showing disintegrations per minute as a function of time during a period of 1 year.