Assertion: astatine's property | /r/HasProperty | unusual
Facets:
value: for a metal
type: OTHER
Source sentences:
text: On the other hand, high-level first-principals (quantum) calculations have been performed that suggest astatine has some unusual properties.
text: It has some properties that are unusual for a metal; taken together, these are sometimes used as a basis to classify aluminium as a metalloid.