group 0

Cards (13)

what are the elements in group 0 also known as?
the noble gases
the noble gases are...
non-metal
monoatomic
colourless
non-flammable
gases at room temperature
how do the noble gases exist?
as single atoms
what state are noble gases at room temperature?
gases
how many electrons do they have in their outer shell?
a full shell.
why are noble gases unreactive?
they dont need to gain or lose electrons to become stable as they have a full shell.
apart from helium, how many electrons do noble gases have in their outer shell?
8
what can helium be used for?
filling balloons as it is less dense than air and doesn't burn.
what can neon and xenon be used for?
advertising signs
why can argon be used to fill light bulbs?
it has the unusual property of glowing brightly when a high potential difference is applied to the gas under low pressure
the noble have very _____ melting and boiling points.
low
what happens to the boiling points as you move down?
they increase as the atoms get larger, leading to an increase in intermolecular forces, requiring more energy to overcome these forces
noble gases are all gases at room temperature. this means that they have _____ densities.
low