Assertion: astatine | /r/HasAspect | 85 protons
Facets:
Source sentences:
text: Astatine (At) has an atomic number of 85, therefore has 85 protons.
text: Astatine, which has 85 protons and 85 electrons per atom, is radioactive, and half of its most stable version decays in just 8.1 hours, a time called half-life.
text: Astatine, which has 85 protons and 85 electrons per atom, is radioactive, and half of its most stable version decays in just 8.1 hours, a time called half-life.