Assertion: noble gas's octet | /r/HasProperty | taken in a theory of chemical bonding
Facets:
value: to be the most stable arrangement
type: PURPOSE
Source sentences:
text: In a theory of chemical bonding advanced by American chemist Gilbert N. Lewis and German chemist Walther Kossel in 1916, this octet of electrons was taken to be the most stable arrangement for the outermost shell of any atom.