What Elements are in your group? Helium Neon Argon Krypton Xenon Radon
Why are they in a group? What do they have in common? they are all –O–Odorless –C–Colorless –L–Low chemical reactivity –L–Low boiling and melting points
Are there any exceptions in this group? Yes, ununoctium is an artificial element.
Are they metals, nonmetals, or metalloids? They are nonmetals
What state do they exist in at room temperature? They are all in a gas state
Are there any trends with in the group? They are mostly natural gases with one man made gas. They are unreactive
How many valence electrons does the group have? 8 valence e-
List 5 uses of some of the elements in the group? He- used for balloons Ne- neon lights Kr- krypton bulbs Ar- argon laser Rn- Radon seeds
List 5 properties (chemical/ physical) He- second lightest element Ne- distinct reddish glow Kr- high light output Ar- non-toxic Rn- -71 F radioactive
List at least 3 interesting things you learned about this group that you have not already talked about Helium moves through the air faster then a Concord Jet Nitrogen Oxide has a 0.934% of argon The atmosphere of the plant Neptune is 83% Hydrogen, 15% Helium, and 2% Methane.