They are very rare (excepting argon) and also they are inert gases.
Because noble gases are colorless and odorless and non-reactive.
- noble gases are very rare (excepting argon) - noble gases are practically unreactive: the haven't compounds in the nature
It took a long time to discover the noble gases because they do not react in basic reactions.
Gases have not hardness.
Noble gases can be found in group 8 on the periodic table (column farthest to the right). They have 8 valance electrons in their outer shell and therefore do not react with anything. This made it hard for scientists to discover them.
Because noble gases are colorless and odorless and non-reactive.
- noble gases are very rare (excepting argon) - noble gases are practically unreactive: the haven't compounds in the nature
It took a long time to discover the noble gases because they do not react in basic reactions.
Gases have not hardness.
Noble gases can be found in group 8 on the periodic table (column farthest to the right). They have 8 valance electrons in their outer shell and therefore do not react with anything. This made it hard for scientists to discover them.
William Ramsay worked at the University College of London.
When Mendeleev proposed his periodic table, the noble gases had not been discovered, so they did not play a part in his development of the periodic table.
Noble gases are of course .... gases !
Attraction between the atoms increases
Noble gases do not react chemically with other noble gases.
inert gases / noble gases
There are no metals in noble gases.All are gases in noble gases.