Naquadah is a fictional element featured in the television series Stargate. In the context of the show, Naquadah is portrayed as an exotic and highly stable material with various unique properties. However, since it is a fictional element, it does not have an officially assigned atomic number in the real periodic table of elements.
In the Stargate universe, Naquadah is often depicted as a key component in advanced technology and energy sources, including power generators and spacecraft propulsion systems. The atomic number of Naquadah is not explicitly specified in the show or any related official materials.
As a result, it is impossible to assign a precise atomic number to Naquadah within the framework of real-world chemistry and the periodic table. It is purely a fictional element created for the purposes of the Stargate franchise.