Group+18Hr7

These 6 gases include  **
 * Welcome to group 18!!! In group 18 are the 6 noble gases on the periodic table.

** __Descriptions:__ odorless, colorless, tasteless, nonflammable (under standard conditions) ** 
 * 1) **helium (He) **
 * 2) **Neon (Ne)  **
 * 3) **Argon (Ar) **
 * 4) **Krypton (Kr) **
 * 5) **Xenon (Xe) **
 * 6) **<span style="background-color: #ffffff; color: #f91f88; font-family: 'Comic Sans MS',cursive;">Radon (Rn) **

Fun Facts: The melting and boiling point of noble gases are with in 10 degrees of each other. //Noble gases// is translated from the German term Edelgas. It was first used in 1898 by Hugo Erdmann.
 * [[image:file:///private/Network/Servers/xserve4.mora.k12.mn.us/Volumes/data/homes_p-z/students/2011/scullardrachel/Desktop/images-2.jpeg]][[image:galaxy2a.gif]]

Helium:<span style="font-family: Arial,Helv,Sans-Serif;">has the lowest melting point of any element and is widely used in research because its boiling point is close to zero. electron configuration: 1s2 N = 1 l =0 M1 = 0 M2 = -.5 Atomic Number: 2 Atomic Mass: 4.0026 Number of Protons: 2 Neutrons:2 Electrons:2 Isotopes: 8

Neon:<span style="font-family: Arial,Helv,Sans-Serif;">In a discharge tube, neon glows reddish orange. electron configuration: 1s22s22p6 N =4 l =1 M1 =1 M2 =-.5 Atomic Number: 10 Atomic Mass: 20.180 Number of Protons: 10 Neutrons:10 Electrons:10 Isotopes: 19

Argon electron configuration: 1s22s22p63s23p6 N=3 l=1 M1=1 M2=-.5 Atomic Number: 18 Atomic Mass:39.948 Number of Protons: 18 Neutrons:22 Electrons:18 Isotopes: 24

Krypton electron configuration: 1s22s22p63s23p64s23d104p6 N=3 l=1 M1=1 M2=-.5 Atomic Number: 36 Atomic Mass: 83.80 Number of Protons: 36 Neutrons:48 Electrons:36 Isotopes: 32

Xenon electron configuration:1s22s22p63s23p64s23d104p65s24d105p6 N=4 l=1 M1=1 M2=-.5 Atomic Number: 54 Atomic Mass: 131.29 Number of Protons: 54 Neutrons:83 Electrons: 54 Isotopes: 39

Radon: electron configuration: 1s22s22p63s23p64s23d104p65s24d105p66s24f145d6p6 N=6 l=1 M1=1 M2=-.5 Atomic Number: 86 Atomic Mass: 222 Number of Protons: 86 Neutrons:136 Electron: 86 Isotopes: 36** <span style="background-color: #ffffff; color: #000000; font-family: 'Comic Sans MS',cursive;">

http://www.chemtopics.com/elements/noble/noble.htm http://www.chemicalelements.com/groups/noblegases.html

i'm not sure how to post. Which of your elements is the most reactive. I know that nobel gases aren't reactive all the much but which is the most?



SOURCES http://en.wikipedia.org/wiki/Noble_gas http://www.corrosionsource.com/handbook/periodic/2.htm