Post on 04-Jul-2020
The Noble Gases
Filament lamps contain metal wires. These become very hot and glow brightly when an electric current is passed through them. Explain why argon, krypton or xenon are used in these lamps.
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Trends in the group
Recap quiz
1. What is the name of group 7? __________
2. Complete the 2 word equations below. Challenge – write the symbol equations.
Learning Check
1. Write down one use of Krypton. ____________________________________________________
2. Describe the trend in boiling point and density of group 0. _______________________________
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3. Group 0 elements are unreactive, what is another word for this? __________________________
4. Explain why Noble gases are unreactive. _____________________________________________
https://www.youtube.com/watch?v=Lid8BsbqTDQ
Noble gas Use Density (g/L)
Helium
Neon
Argon
Krypton
Xenon