H2.He,Kr,Ne,Ar,Xe,Rd,O2,N2,NO,NO2,N2O,CO2,SO2,H2S,SO3
Because noble gases were not discovered when Mendeleev formulated his periodic table
no - gases are few in number - metals make up most of the periodic table
these gases are the noble gases or inert gases. They are non reactive and have stable valence electrons
look at a periodic table
gas
Almost all of the elements in the periodic table are solids.
There are no 'rows' on the Periodic Table of the Elements.I assume you are talking about Group-18 of the table.Group-18 of the Periodic Table of the Elements are the noble gases. These elements have a full valence shell (8 electrons).
Dmitri Mendeleev did not discover the noble gases as they were not known at the time he created the periodic table. The noble gases were discovered later by other scientists. Mendeleev's periodic table focused on arranging elements by atomic mass and properties to show periodic trends.
The periodic table contain solid, liquid and gaseous chemical elements.
group 18, the right most group on the periodic table
Periodic table is an arrangement of elements and the elements could be either solid or liquids or gases.
Gases are located on the rigt side.