Assertion: ion's electron | /r/CapableOf | receive energy
Facets:
value: from electromagnetic field
type: TRANSITIVE-OBJECT
value: in discrete units
type: MANNER
Source sentences:
text: Einstein explained this enigma by postulating that the electrons can receive energy from electromagnetic field only in discrete units (quanta or photons): an amount of energy E that was related to the frequency f of the light by