Group 18

 

2

He

Helium

4.002602

1s2

 

Atomic number: 2

Atomic Mass: 4.002602

# of Protons: 2 # of electrons: 2 # of nuetrons: 2

Uses: Cools superconducting magnets in MRI scanners, condenses hydrogen and oxygen to make rocket fuel.

 

 

10

Ne

Neon

20.1797

[He]2s22p6

Atomic Number: 10

Atomic Mass: 20.1797

# of Protons: 10 # of electrons: 10 # of nuetrons: 10

Uses: Often used in advertising signs, Used in vacuum tubes, high-voltage indicators, wave meter tubes, television.

 

18

Ar

Argon

39.948

[Ne]3s23p6

Atomic number: 10

Atomic mass: 10

# of Protons: 18 # of electrons: 18 # of nuetrons: 18

Uses: Argon gas is used in graphite electric burners to prevent the graphite from burning, used to kill pigs humanely if there is an outbreak of some disease on the farm. Blue argon lasers are used in surgery to weld arteries and correct eye problems.

 

36

Kr

Krypton

83.80

[Ar]3d104s24p6

Atomic number: 36

Atomic Mass: 83.80

# of protons: 36 # of electrons: 36 # of nuetrons: 36

Uses: used in some photographic flash lamps for high-speed photography, lamps, UV-laser spectral line used for international measurement of a metre.  

 

54

Xe

Xenon

131.29

[Kr]4d105s25p6

Atomic number: 54

Atomic mass: 131.29

# of Protons: 54 # of electrons: 54 # of nuetrons: 54

Uses: used in making electron tubes, stroboscopic lamps, bactericidal lamps, and lamps used to excite ruby lasers for generating coherent light. used in the atomic energy field in bubble chambers, probes, and other applications where its high molecular weight is of value

 

 

86

Rn

Radon

(222)

[Xe]4f145d106s26p6

Atomic number: 86

Atomic Mass: (222)

# of Protons: 86 # of electrons: 86 # of Nuetrons: 86

Uses:occasional therapeutic use, earthquake prediction, radiation therapy in hospitals

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