group 18, all periods
noble gases atomic number 2 chemical symbol He
Noble gases exist in the nature as gases; only a small number of (all man made) compounds of noble gases are known.
Noble gases have larger atomic radii than alkali metals in the same period.
Noble gases are found in column (or group) 18
Because noble gases are in the last column
The number of electron shells depends on the noble gas. The number of shells will be equal to the period in which the noble gas is present.
noble gases atomic number 2 chemical symbol He
Noble gases exist in the nature as gases; only a small number of (all man made) compounds of noble gases are known.
Noble Gases
Noble gases have larger atomic radii than alkali metals in the same period.
Noble gases are found in column (or group) 18
In all periods, group 18.
Neon is in period 2 of the periodic table, and in group 18, the noble gases
Because noble gases are in the last column
The noble gases from the least atomic number are, helium, neon, argon, krypton, xenon and redon.
For helium it is 1s2. For the other noble gases it will be ns2 np6 where n is the period in which the noble gas in present.
Neon is a noble gas located in period 2 on the periodic table.