Noble Gases

This gives a brief overview of the noble gases. (includes animations on 2nd slide)

1. By Alex && Mel

4. Atomic Number: 2
Melting Point: -272.0 °C (1.15 K, -457.6 °F)
Boiling Point: -268.6 °C (4.549994 K, -451.48 °F)
Number of Protons/Electrons: 2
Number of Neutrons: 2
Density @ 293 K: 0.1785 g/cm
3

Date of Discovery:
1895
Discoverer: Sir William
Ramsay
Name Origin: From the
Greek word hêlios (sun)
Uses: balloons, deep sea
diving
Obtained From: natural
gas deposit, air
The dangers of inahing helium are rare, but if
you don't breathe for 5 seconds in between,
you could get a soar throat or maybe pass
out.
Can't be made into compounds

5. Atomic Number: 10
Atomic Mass: 20.1797 amu
Melting Point: -248.6 °C (24.549994 K,
-415.48 °F)
Boiling Point: -246.1 °C (27.049994 K,
-410.98 °F)
Number of Protons/Electrons: 10
Number of Neutrons: 10
Density @ 293 K: 0.901 g/cm
3

Date of Discovery: 1898
Discoverer: Sir William
Ramsay
Name Origin: Form the Greek
word neos (new)
Uses: lighting
Obtained From: liquid air
The danger is Asphyxiation
but that is very rare.
Can't be made into compounds.

6. Atomic Number: 18
Atomic Mass: 39.948 amu
Melting Point: -189.3 °C (83.85 K, -308.74
°F)
Boiling Point: -186.0 °C (87.15 K, -302.8
°F)
Number of Protons/Electrons: 18
Number of Neutrons: 22
Density @ 293 K: 1.784 g/cm
3

Date of Discovery: 1894
Discoverer: Sir William
Ramsay
Name Origin: From the
Greek word argon (inactive)
Uses: Lighting
Obtained From: air
Argon has the opposite effect as helium on your voice. Because it is so dense - it
makes your voice lower. Which means it has the same dangers as helium.
Can't be made into compounds.

7. Krypton is not toxic, but in an enclosed
environment, it can displace air and cause
asphyxiation.
Can't be made into compounds.
Atomic Number: 36
Atomic Mass: 83.8 amu
Melting Point: -157.2 °C (115.950005 K,
-250.95999 °F)
Boiling Point: -153.4 °C (119.75001 K, -244.12
°F)
Number of Protons/Electrons: 36
Number of Neutrons: 48
Density @ 293 K: 3.74 g/cm
3

Date of Discovery: 1898
Discoverer: Sir William
Ramsay
Name Origin: From the
Greek word kryptos
(hidden)
Uses: Lighting
Obtained From:
production of liquid air

8. The xenon lights in cars hurt peoples eyes which can be dangerous but they aren't
harmful.
In 1962 the first noble gas compound was produced by Neil Bartlett, combining
xenon, platinum and fluorine. It is now possible to produce xenon compounds in
which the oxidation states range from +2 to +8(!).
Atomic Number: 54
Atomic Mass: 131.29 amu
Melting Point: -111.9 °C (161.25 K,
-169.42 °F)
Boiling Point: -108.1 °C (165.05 K,
-162.58 °F)
Number of Protons/Electrons: 54
Number of Neutrons: 77
Density @ 293 K: 5.8971 g/cm
3

Date of Discovery: 1898
Discoverer: Sir William Ramsay
Name Origin: From the Greek word
xenon (stranger)
Uses: powerful lamps, bubble
chambers
Obtained From: liquid air

9. Atomic Number: 86
Atomic Mass: (222.0) amu
Melting Point: -71.0 °C (202.15 K, -95.8
°F)
Boiling Point: -61.8 °C (211.35 K, -79.24
°F)
Number of Protons/Electrons: 86
Number of Neutrons: 136
Density @ 293 K: 9.73 g/cm
3
It is radioactive and is naturally formed like oxygen which means it is everywhere it
is around wherever air is allowed to stagnate.
Can't be made into compounds.
Date of Discovery: 1898
Discoverer: Fredrich Ernst Dorn
Name Origin: From radium
Uses: treatment of cancer
Obtained From: decay of radium

10. By Mel & Alex :]
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