Start Radiometric dating uses the decay rates of

Radiometric dating uses the decay rates of

It was soon evident that Becquerel’s rays originated in the nuclei of the atoms.

Since all of these factors affect electrons in an atom, the radiation cannot come from electron transitions, as atomic spectra do.

In 1898, Marie Curie began her doctoral study of Becquerel’s rays.

A nucleus with mass number A and atomic number Z is represented as (A, Z).