Assertion: krypton | /r/HasProperty | discovered by morris william travers
Facets:
value: along with xenon
type: OTHER
value: in 1898
type: TEMPORAL
Source sentences:
text: Krypton, along with xenon and neon was discovered by Sir William Ramsay (a Scottish chemist and physicist) and Morris William Travers, an English chemist, in 1898.