Assertion: iodic acid's iodine | /r/HasProperty | one of the heaviest elements
Facets:
value: at atomic number
type: OTHER
Source sentences:
text: Iodine is one of the heaviest elements needed by living things.
text: Iodine is an essential element for life and, at atomic number Z = 53, is the heaviest element commonly needed by living organisms.
text: Iodine is one of the heaviest elements needed by living things.