Assertion: atom | /r/HasProperty | a ball of positive charge
Facets:
value: in this model
type: LOCATION
Source sentences:
text: In this model, the atom is a ball of positive charge -- the pudding -- in which the electrons -- the plums -- are located.
text: In this model, the atom is a ball of positive charge with negative electrons embedded in it - like currants in a Christmas pudding.