It's 54, periodically speaking

Usage examples of xenon.

Detected were: iron, silicon, carbon, platinum, gold, lead, indium, gallium, gadolinium, dysprosium, lanthanum, xenon, potassium, astatine.

As the hather staggered to its feet, Xenon tethered it to a sapling and turned his attention to the catamint.

Xenon eased up blinking, looked to make sure Charis was all right, and saw her crumpled on the ground beside her hather, Blanca hovering over her.

Back with the others, Xenon examined the lame hather, discovering a stone wedged into its hoof.

In a daze, she followed Xenon into the meadow, and like him, slid off her hather, freeing the animal to graze.

But since the only other alternative would be to tie him here as a meal for an oule, Xenon, using the rope as a leash, hurried into the woods with the hound at his heels.

Out of the silty gloom the crystal pillar appeared, glowing with the warmth of his reflected xenon lamps.

The moon possessed a thin atmosphere of xenon and other heavy gasses that tempered the harshness of the sun-glare and painted the blackness of space with a translucent film of sky.

Not surprisingly, thousands of heretofore childless couples the world over were imbued with similar sentiments, hence the names Xenor, Xenion, Xendon and Xendrew for boys, and Xena, Xenia, or Xenita for girls, are very common nowadays among out ultra-children.

The atomic numbers of the five noble gases are: helium 2, neon 10, argon 18, krypton 36, and xenon 54.

The frozen slugs of xenon propellant began to heat up, and then to sublime.

He is not intrigued or impressed by the fact that a noble gas like xenon can form compounds--something that until recently most chemists swore was impossible.

If they're all like the one over Mars, they've got an atmosphere of xenon or one of the other noble gases.

The particles are usually of mercury, or perhaps, a rare gas called xenon.