group 0 - noble gases Flashcards
1
Q
name the noble gases:
A
helium neon argon krypton xenon
2
Q
physical properties of noble gases:
A
colourless
have low bp & mp
low densities
are inert (chemically un reactive)
3
Q
patterns with noble gases:
A
as you go down the group the boiling points increase
as you go down the densities increase
4
Q
uses of helium
A
reduce rusting or oxidation
5
Q
uses of neon
A
lasers, neon signs, tv tubes
6
Q
uses of argon
A
as a shield gas
improve quality of welding
7
Q
uses of krypton
A
lamps
neon lights
photography
can burn out tonsils
