Determine the identity of the daughter nuclide

Question

Determine the identity of the daughter nuclide from the electron capture by ²³⁰₉₁ Pa.

Answer 1

Both the atomic mass number and the atomic number are conserved in the nuclear reaction:

²³⁰₉₁Pa + ⁰_-1e --> ²³⁰₉₀X look up the element with that atomic number.