Assertion: berkelium's structure | /r/HasProperty | studied
Facets:
value: rarely
type: DEGREE
Source sentences:
text: An important phenomenon for radioactive solids has been studied for these two crystal forms: the structures of fresh and aged 249BkBr 3 samples were studied using X-ray diffraction over a period longer than 3 years, so that various fractions of 249Bk had beta decayed to 249Cf.
text: Although berkelium was first synthesized over 60 years ago, its isotope is produced in such small amounts and remains stable for such a short time (less than a year) that its fundamental structure and properties are rarely studied.