why are noble metals inert ?

i need a defnition in terms of its electronic configuration

Noble gases are those elements with configuration with ns², np⁶ in valence shell. Due to their electronic shell saturation, they have low chemical reactivity and do not have affinity for new bond formation.(not affected by chemical bonding)

These elements of the 18^th group are also called noble elements or rare elements.

Thanks & Regards,

Vasantha Sivaraj,

askIITians faculty