From the case:
Alpha decay
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_pin":false},"extraPropsURL":"/studies/38009/annotated_viewer_json?lang=us"}
Alpha decay
Case Discussion
Alpha decay is the process in which an alpha particle (containing two neutrons and two protons) is ejected from the nucleus. An alpha particle is identical to the nucleus of a helium atom, being the most stable nucleus so far.
Unable to process the form. Check for errors and try again.