Assertion: natural neon | /r/HasProperty | neon-21 0.26 percent
Facets:
Source sentences:
text: Natural neon is a mixture of three stable isotopes: neon-20 (90.92 percent); neon-21 (0.26 percent); and neon-22 (8.82 percent).
text: Natural neon is a mixture of three stable isotopes: neon-20 (90.92 percent); neon-21 (0.26 percent); and neon-22 (8.82 percent).