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the one that is completely filled
Three completely filled orbitals.
The outer shell is completely filled.
Elements are stable when they have completely filled (or half filled) orbitals.
full
inhale
p-block elements have partially filled p-subshell. It is not completely filled.
Three electron shells would be completely filled by a neutral xenon atom.
Argon has completely filled M shell (or 3p orbital)
Its outer shell is filled with electrons.
Nitrogen (N) is atomic number 7, so has 7 electrons in the ground state. The configuration is1s2 2s2 2p3. From this, one can see that the 1s is full, as is the 2s. So, the number of completely filled orbitals is TWO.
filled energy sublevels