Assertion: atom's property | /r/HasProperty | studied
Facets:
value: extensively
type: DEGREE
Source sentences:
text: The nuclear properties of plutonium-239 were also studied; researchers found that when it is hit by a neutron it breaks apart (fissions) by releasing more neutrons and energy.
text: The physical properties of iron at very high pressures and temperatures have also been studied extensively , because of their relevance to theories about the cores of the Earth and other planets.