Answers to the
GCSE word-fill worksheet questions on the Group 0 Noble Gases
GCSE/IGCSE Noble Gas Notes
GCSE/IGCSE m/c Quiz on
Q1(a) Fewer than one quarter of the elements are
(b) Non-metal elements are found in the groups at the
right hand side of the periodic table.
(c) The elements in Group 7 the halogens, and Group 0 the noble
gases, have the typical properties of
non-metals - they have
low melting points and boiling points.
(d) As you go up the group the density, and melting and boiling points get
Q2(a) The noble gases are all colourless gases at room temperature and pressure.
(b) They are chemically very unreactive gases and exist as
single atoms rather than as
diatomic gases like other gaseous
elements such as oxygen O2, or hydrogen H2.
(c) They are used in electrical discharge tubes e.g. 'neon' lights and as
inert gases in filament lamps because they are so unreactive and will not
burn the filament.
Q3(a) The first element in the Group,
helium, has a density much
lower than air and is used in balloons.
(b) Unreactive helium is safer to use in balloons than
hydrogen which is
flammable in air.
(c) They are very unreactive because the outer
shell of electrons is
(d) This means the atom does not wish to gain, share of donate electrons to form a chemical
Q4(a) All of the elements on the left of the Periodic Table are
metals eg Group 1 the
alkali metals, Group 2 and in the