Assertion: polonium's radioactivity | /r/HasProperty | due
Facets:
value: to the great instability of nuclei
type: CAUSE
Source sentences:
text: The article states, "The great radioactivity of polonium and its immediate neighbors to the right on the periodic table, and its stark contrast with lead and bismuth, is due to the great instability of nuclei containing 84 or more protons, especially when they also contain 128 neutrons, which causes them to be extremely unstable and rapidly emit alpha particles.
text: The great radioactivity of polonium and its immediate neighbors to the right on the periodic table, and its stark contrast with lead and bismuth, is due to the great instability of nuclei containing 84 or more protons.