Assertion: atom | /r/MadeOf | a volume of electric charge
Facets:
value: at its center
type: LOCATION
Source sentences:
text: Considering the results of the above experiments, Rutherford published a landmark paper in 1911 titled "The Scattering of α and β Particles by Matter and the Structure of the Atom" wherein he proposed that the atom contains at its center a volume of electric charge that is very small and intense (in fact, Rutherford treats it as a point charge in his calculations).