Nobel Gases

Nobel Gases
Also known as inert gases. They are the last group, i.e. group 8, in the period table. As they belong to the same group they have the same physical and chemical properties. They have a stable electronic configuration by having an octet in their outermost shell, under normal condition they are odorless, colorless, tasteless monatomic gases. All of them has a closed subshell, a p subshell which is tightly bound (for helium, it has only s orbital).They are chemically inert and so don't form chemical bonds with other atoms. They are only VanderWaals forces of attraction between them. As they don't have have any valence electrons they have have high ionization energies and poor conductivity. With low boiling points, they are gases at room temperature.
Helium

Helium, atomic number 2, has the following properties:
Atomic Weight: 4.002602g
Melting Point: -272.375 °C (25atm)
Boiling Point: -268.928 °C
Density: 0.1787g/L at 273.15K & 1atm
Oxidation State...