Assertion: atom's property | /r/AtLocation | regular intervals
Facets:
value: periodically
type: TEMPORAL
value: in other words
type: OTHER
Source sentences:
text: You'll find that elements with similar chemical properties (how they react with things) and physical properties (whether they're metals or non-metals, how they conduct heat and electricity, and so on) occur at regular intervals—periodically, in other words.