Almost always, yes. This is why they are so stable and do not react: having filled valance shells, they can neither give up or gain an electron to become more stable.
The exception to this rule are the heavier noble gases, whose outermost valance shells are more prone to ionization due to the shielding effect from the electrons in the lower valance shells.
The noble gasses. i ike men
The noble gases have valance shells that are complete. For this reason, these gases are inert. The noble gases are helium, neon, krypton, argon, and radon.
They have filled valence shells. Atoms undergo chemical bonding in order to have filled valence shells by sharing electrons or transferring electrons. Because the noble gases already have filled valence shells, they have no need to react with other elements.
they have completely filled shells (or orbitals) and are hence stable and unreactive.
There are no unpaired electrons. All electron shells are filled; this is the reason they are called the noble gases.
Noble gases have completely filled valence electrons. Helium has 2, other elements have 8
All noble gases (helium, neon, argon, krypton, xenon and radon) have completely filled valence shells (valence orbitals).
They have completely filled shells, with eight valence electrons.
The noble gases, which are helium, neon, argon, krypton, xenon, and radon, have their outermost electron shells full.
They have completely filled shells, with eight valence electrons (stable) and hence are inert.
Generally (but not always) stable ions will have the same the electronic configuration as that of noble gases (completely filled valence shells / orbitals)
noble gases are elements and generally do not form cations due to the presence of completely filled valence shells.