He

Ne

Ar

Kr

Xe

Rn

Helium

Neon

Argon

Krypton

Xenon

Radon

2

10

18

36

54

86

G r o u p 8 - T h e N o b l e G a s e sTHE GROUP 8 ELEMENTS ARE ALL ODOURLESS, COLOURLESS, MONOATOMIC GASES WITH A VERY LOW CHEMICAL REACTIVITY

A L L O F T H E

GROUP 8 ELEMENTS H A V E A

FULL OUTER SHELL OF ELECTRONS

T H E G R O U P 8 E L E M E N T S A R E

V E R Y U N R E A C T I V EA S T H E Y A L R E A D Y H A V E A FULL VALENCE ELECTRON SHELL

T H E C O L O U R S I N N E O N S I G N SA R E C A U S E D B Y I O N I S E D N O B L E G A S E S

H E L I U M I S T H E

S E C O N D M O S TABUNDANT ELEMENTI N T H E U NI VE R S E

Ar

2013 COMPOUND INTEREST - WWW.COMPOUNDCHEM.COM

T H E NOBLE GASES

A R E A L LMONOATOMIC

ANDRARELY FORMCOMPOUNDS

- 2 69CH E L I U M H A S T H E LOWEST BOILING POINT O F A L L E L E M E N T S I N T H E P E R I O D I C TA B L E

R A D O N I SR A D I O A C T I V EAND CAN ENTERHOMES THROUGHBASEMENTS AFTER R A D I O A C T I V E DECAY OF ROCKS BELOW THE EARTH

He Ne Ar Kr XeHELIUM-269C

ARGON-186C

XENON-107C

NEON-246C

KRYPTON-152C

B O I L I N G P O I N T S

HELIUM NEON ARGON KRYPTON XENON

BALLOONSNEON LIGHTS

REFRIGERANT

MEDICAL LASERS

LIGHT BULBS

CAMERA FLASHES

MEDICAL IMAGING

U S E S O F T H E N O B L E G A S E S

222Rn

H He75% 23% 1%

O1 2 3

NEON

RADON-62C