Xenon has 2 syllables and the stress is on the first syllable.
| # | Sentence | |
|---|---|---|
| 1. | Helium, neon, argon, krypton, xenon and radon are noble gases. | |
| 2. | Our atmosphere contains 21% oxygen, which is necessary for us to breathe, 78% nitrogen, and 0.9% argon. The other 0.1% consists of water vapor, carbon dioxide, neon, methane, krypton, helium, xenon, hydrogen, nitrous oxide, carbon monoxide, nitrogen dioxide, sulfur dioxide, and ozone. |