Assertion: electron | /r/HasProperty | thought as particle
Facets:
value: previously
type: TEMPORAL
Source sentences:
text: This confirmed L. V. de Broglie's hypothesis that electrons, which had previously been thought of as particles, also possess certain wave properties (see quantum theory
text: This confirmed L. V. de Broglie's hypothesis that electrons, which had previously been thought of as particles, also possess certain wave properties (see quantum theory