April 2020
Intermediate to advanced
296 pages
5h 20m
English

As noble gas in group 18 shy krypton’s oh so rare,
For oh so long it hid from view, 1 ppm in air.
Now liquefied it flows just fine,
Our meter’s length it help’d define;
In high-power’d lasers, bulbs of light, flash-photos’ stark white glare.
THE FOURTH MEMBER OF THE GROUP 18 NOBLE GASES
Krypton is a colorless, odorless noble gas that takes its name from the Greek word kryptos, meaning hidden. It’s one of the rarest atmospheric gaseous elements, accounting for only one part per million (ppm) by volume in air. Krypton remained ...