Headings Noble
Gases Search Questions 
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The Noble
Gases - Group 0.
For shortcuts to the pages of this
section, see Noble Gases.
The noble
gases are in group
0 on the right of the periodic table.
The noble gases are entirely unreactive.
They all have a complete outer shell of electrons
and are not interested in reacting with other elements.
They are all colourless
monatomic gases.
Monatomic means that they exist as
single atoms.
The forces between the atoms are very weak
(and so they are gases).
Going down the group from
helium to radon,
the density
increases.
The melting and boiling point increases because the atoms
become heavier (bigger) and
require more
energy to melt or boil
(see melting points
and boiling
points of elements).
Headings Noble
Gases Search Questions
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