Here are the electron configurations for N (Nitrogen) and Co (Cobalt):

Nitrogen (N):

* Full Configuration: 1s² 2s² 2p³

* Short-hand Configuration: [He] 2s² 2p³

Cobalt (Co):

* Full Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁷

* Short-hand Configuration: [Ar] 4s² 3d⁷

Explanation:

* Electron Configuration: This describes the arrangement of electrons in an atom's energy levels and sublevels.

* Principal Quantum Number (n): The number before each letter (e.g., 1, 2, 3) indicates the energy level.

* Sublevels (s, p, d, f): Each sublevel can hold a specific number of electrons:

* s: 2 electrons

* p: 6 electrons

* d: 10 electrons

* f: 14 electrons

* Short-hand Configuration: This uses the previous noble gas element's configuration as a starting point.

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