1. Presented by: Mikko, Jason, Jaquan, Matthew
Noble Gases
Presented by: Mikko, Jason, Jaquan, Matthew

2. Characteristics of a Noble Gas
-Nobles gases contain the elements: Helium, Neon, Argon, Krypton, Xenon, and Radon.
-In which, they are gases that are found to be colorless, odorless, and flavorless when in standard conditions.
-They all also have high ionization with low reactivity, non-flammable, low boiling point, and lastly when at low pressure they can conduct electricity and fluoresce.

3. Helium

4. Basic facts and discovery
-Helium’s atomic number is 2.
-The 2nd most common element in the universe, and the 2nd least reactive element that is also lighter than air.
-Helium could be found providing a protective atmosphere by making fibre optics and semiconductors.
-Helium was discovered by Pierre Jules Cesar around
-He discovered helium when he was observing the sun and noticed that there was a yellow line.
Chemical Characteristics:
Melting Point: 0.95
Density:
Specific Heat:
Reactivity: Low

5. Uses and Dangers
-Helium is typically used for inflating blimps, scientific balloons, and party balloons.
-It also could help others by arc welding and even being used for open-heart surgery.
-Some dangers that come along with helium is that when inhaled it causes someone to displace oxygen from the lungs leading someone to asphyxiate.
- When inhaled in the mouth many find it to be pretty funny but according to the NIPC they warned about this to be pretty harmful.

6. Neon

7. Basic facts and discovery
-Neon’s atomic number is 10.
-The 2nd most lightest non-movable gas and the 5th most abundant(plentiful) chemical element.
-Neon could be found in 1/65,000 of the Earth’s atmosphere and as well as within the crust.
-Neon was discovered by Sir William Ramsay in shortly after krypton was discovered when Ramsay was studying liquified air.
Chemical Characteristics:
Melting Point: 24.7
Density:
Specific Heat:
Reactivity: Low

8. Uses and Dangers
-Neon could be used for glow lamps, electron tubes, signs, and gas lasers.
-It’s also effective when used for refrigerant when in liquid form.
-Neon could be used to help others by helping the Earth’s atmosphere and passively having no threat to the environment.
-Some dangers that come along with the element is that it can lead to asphyxiation to occur and can cause unconsciousness or death. It lastly can also cause frostbites.

9. Argon

10. Basic Facts and Discovery
-Argon’s atomic number is 18.
-It’s the first noble gas to be discovered by Sir William Ramsay who discovered 4 of the other noble gases, and the fifth most abundant chemical element in the periodic table.
-Argon can be found in 0.93% of the Earth’s atmosphere.
-The element was discovered by Sir William Ramsay in 1894 by taking oxygen and nitrogen out of the Earth’s own air.
Chemical Characteristics:
Melting Point: 83.6
Density:
Specific Heat: 0.52
Reactivity: Low

11. Uses and Dangers
-Argon could be used for electrical bulbs, photo tubes, and fluorescent tubes.
-Argon is used to fill incandescent and fluorescent light bulbs to prevent oxygen to ruin the hot filament.
-As for the environment, argon is helpful for creating semiconductor and processes that shields the atmosphere from other atmospheric gases.
-Any hazards that come with argon is that when it has enough concentration it can displace oxygen in the air and can kill you do to an asphyxiation.

12. Krypton

13. Basic Facts and Discovery
- Krypton has an atomic number of 36
- When krypton is exposed to an electrical current under low pressure it’s capable of lighting up
- Krypton can be found in many different areas such as in the Earth’s atmosphere and in a big selection of minerals.
-Krypton was discovered by William Ramsey in 1898 while working with liquified air.
Chemical Characteristics
Melting Point: 115.8
Density: 3.708
Specific Heat: 0.248
Reactivity: Low

14. Uses and Dangers
- Krypton can be used in photographic flashes used in certain high speed cameras.
- Could also be used as filling gas for energy- saving fluorescent light bulbs.
- Found very rarely in the earth’s atmosphere as well as in various minerals
- When in a closed space Krypton can contain certain hazards Which consist of asphyxiation

15. Xenon

16. Basic facts and Discovery
- On the periodic table Xenon has an atomic number of 54.
- When Xenon is exposed to normal conditions, Its surface density can be up to 4.5 times the Earth’s density.
- This element can be found in the Earth’s atmosphere as well as on the atmosphere of mars.
- Xenon was discovered by William ramsey in when he left a residue over from evaporation of liquid air.
Chemical Characteristics:
Melting Point: 161.7
Density: 5.851
Specific Heat: 0.158
Reactivity: Low

17. Uses and Dangers
- When in high pressure Xenon can be used for motion picture projections but can also be used for photographic flashes
- Xenon is also used for emitting light and being a part of our atmosphere.
- Xenon can be useful when helping us because they can use this element for X-ray counters and other medicines.
-Xenon can be dangerous because when inhaled it could cause someone to feel dizziness, nausea, vomiting, loss of consciousness, and death(asphyxiation).

18. Radon

19. Basic facts and Discovery
-Radon’s atomic number is 86.
-Radon in which is very toxic and when in its freezing point it would expose out a light.
-Radon can be found inside of igneous rocks and soil.
-It was discovered by Friedrich E. Dorn in 1900, when he noticed that radium(alkaline earth metal) was releasing a gas.
Chemical Characteristics:
Melting Point: 202.2
Density: 9.97
Specific Heat: 0.09
Reactivity: Low

20. Uses and Dangers
-Radon is used for cancer therapy, treating tumors, and diseases in the situ.
-It also has been used in the past for clocks and watch dials.
-Radon is the most deadliest and hazardous noble gas because for one thing, its ionization radiation can adapt into DNA, which could cause mutations and many other harmful effects.
-Radon itself is radioactive and causes lung cancer, emphysema, hardening lung tissue, and chromosomal irregulation.

21. Conclusion

22. Similarities When under ordinary conditions:
-colorless -odorless -flavorless
-Has high ionization
-low reactivity
-Neon, argon, krypton, and xenon were all discovered by William Ramsay, while helium and radon was found by someone else.
-When inhaled it could lead to asphyxiation.
-non-flammable
-low boiling point
-when at low pressure they can conduct electricity and fluoresce.
Similarities

23. Questions 1.What are the 6 elements that are noble gases?
2.What are at least 2 things these elements have in common?
3.Which element is the most hazardous?
4.What is one way xenon is used for?
Questions

24. Answers 1. Helium, Neon, Argon, Krypton, Xenon, and Radon
2. depends on what they say(relating to the similarity slide.
3. Radon
4. Photographic flashes, motion picture projections, emitting light, and helping the Earth’s atmosphere.
Answers