Assertion: beta decay | /r/CapableOf | lose another electron
Facets:
value: during the next several days
type: TEMPORAL
value: to become
type: PURPOSE
Source sentences:
text: This unstable Neptunium isotope undergoes further beta decay losing another electron during the next several days to become the more stable Plutonium-239, one of fifteen isotopes of Plutonium, which has a half life of 24,000 years.