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Noble gases have a full octet of electrons, meaning that both the S and P orbitals have all 8 electron. For example, Neon has 1s22s22p6. On the second level, both the S and P orbitals have completely filled valences. From this, you can also infer that they are the most stable elements because they do not need to react in order to gain stability. It will have to take a large amount of energy in order to remove an electron and to get a Noble Gas to react.

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15y ago

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