krypton science project

6
Atomic Number: 36 Atomic Symbol: Kr Atomic Weight: 83.798 Krypton

Upload: heislr

Post on 08-Jul-2015

139 views

Category:

Science


1 download

TRANSCRIPT

Page 1: Krypton science project

Atomic Number: 36 Atomic Symbol: Kr

Atomic Weight: 83.798

Krypton

Page 2: Krypton science project

Word origin: The term krypton comes from the Greek word kryptos, which means hidden.

Page 3: Krypton science project

Discovery: The element was discovered by Sir William Ramsay, a Scottish chemist, and Morris M. Travers, an English chemist, in 1898. They were studying liquefied air and saw a small amount of liquid krypton after the air had boiled away.

Page 4: Krypton science project

The element is one of the noble gases, a category of chemical elements that all have similar properties.

Solid krypton is a milky-white crystalline substance with atoms arranged at the corners and points of cubes in its structures. This is called a face-centered cube structure that is common to most noble gases. Krypton gas has bright green and orange spectral lines. These spectral lines are easy to produce and can look quite beautiful.

Page 5: Krypton science project

Sources of krypton !

Krypton is a rare gas. The earth's atmosphere contains about 0.0001 percent krypton. Scientists have found the atmosphere of Mars contains 0.0003 percent of krypton. !

Uses of krypton !

As it is quite rare, krypton is not commonly used for many purposes. It is used in combination with argon in some fluorescent light bulbs. It is also used in some photographic flash lamps for high-speed photography.

Page 6: Krypton science project

The facts from the project was from! http://www.livescience.com/!

!