group 0 Flashcards
1
Q
do the noble gasses have high or low melting and boiling points
A
low
2
Q
density, melting and boiling points ____ down group 0
A
increase
3
Q
why are atoms in group 0 unreactive?
A
because they have full outer shells
4
Q
what are the properties of noble gasses
A
-low densities
-inflammable
5
Q
helium is…
A
-less dense than air, so balloons and airships rise
-non-flammable so the helium cannot set on fire
6
Q
A
