Group 0 Flashcards
What name is used to describe the
elements in group 0 of the periodic
table?
Noble gases
How many electrons do the noble gases have in
their outer shell?
0
They have no incomplete shells/ full outer shells of
electrons.
What does chemically inert mean?
Not chemically active
Why are the noble gases chemically inert?
They have full outer electron shells. This
is a very stable electron configuration
and means the elements are very
unreactive.
What properties of helium makes it suitable for use in
balloons?
It is less dense than air and does not
burn.
Why is argon used to fill electric light bulbs?
It is very chemically inert so will not react
when the light bulb gets hot. It is
non-flammable.
Why is argon used for welding?
It provides an inert welding atmosphere.
Argon is more dense than air so keeps
air away from the metal.
What is the trend in boiling points down group 0?
Boiling point increases down group 0 because
the relative atomic mass increases so there
are more intermolecular forces between
atoms.
What is the trend in density down group 0?
Density increases down the group.
Helium is the least dense and radon is
the most dense
