Group 18
The Noble Gases…
Noble gases are nonmetals that are not reactive and are in Group 18 on the periodic table.
Noble gases include Helium, Neon, Argon, Krypton, Xenon and Radon.
Lightbulbs filled with argon last longer than normal lightbulbs without argon in them.
Helium has a low density and makes blimps, weather balloons and many other things float.
All of these elements do not naturally form chemical bonds with other atoms and are almost always found in their purest state. Xenon make lights in cars which can hurt people’s eyes but are not harmful in any way. Krypton is one of the rarest gases on Earth, composing only 1 part per million in the atmosphere by volume.
Potassium: Potassium is an element with the symbol of K an atomic number of 19. It was discovered in 1807 by a scientist named Humphry Davy.
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Helium: Elizibeth
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Helium: Elizibeth
Neon: Shay
Argon: Grace
Krypton: Janette
Xenon: Nathan
Radon: Alexander
Helium is the 2nd most lightest element on earth, along with being 2nd most abundant element in the universe. Helium is seen commonly in balloons making them float due to helium being lighter than air.
ReplyDeleteNeon has a symbol of Ne, atomic number of 10, discovered in 1898,is a member of the noble gasses,and neon has a reddish orange glow in a vacuum tube
ReplyDeleteRadon has an atomic number of 86.
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