What changes take place in the nucleus in step 3? A) The actinium atom loses a proton and a neutron. B) The actinium atom loses two protons and two neutrons. C) The actinium atom loses a proton and gains a neutron. D) The actinium atom loses a neutron and gains a proton.

Respuesta :

Radioactivity is the spontaneous loss of radiation from an atom.

What is radioactivity?

Radioactivity is the spontaneous loss of radiation from an atom. sometimes radioactive decay occurs in stages. Recall that radioactive decay often leads to the formation of a new nucleus.

Since the sequence of steps is not shown here, the question is incomplete and the exact process that took place in actinium can not be exactly determined.

Learn more about radioactivity: https://brainly.com/question/11069096