Question

electron configuration and orbital notation
instructions: complete the electron orbital diagram for each element below, and then write the electron configuration in full notation and noble gas notation (abbreviated).
example 1: nitrogen (n)
electron configuration:
noble gas configuration (abbreviated):
example 2: fluorine (f)
electron configuration:
noble gas configuration (abbreviated):

Explanation:

Step1: Recall electron - filling rules

Electrons fill orbitals in order of increasing energy (1s < 2s < 2p < 3s < 3p < 4s < 3d < 4p etc.), with a maximum of 2 electrons per orbital and following Hund's rule (electrons fill degenerate orbitals singly before pairing).

Step2: Determine electron configuration for nitrogen

Nitrogen has 7 electrons. The electron - filling order gives us the electron configuration $1s^{2}2s^{2}2p^{3}$.

Step3: Write noble - gas configuration for nitrogen

The noble gas before nitrogen is helium. Helium has 2 electrons. So the noble - gas configuration of nitrogen is $[He]2s^{2}2p^{3}$.

Step4: Determine electron configuration for fluorine

Fluorine has 9 electrons. The electron - filling order gives us the electron configuration $1s^{2}2s^{2}2p^{5}$.

Step5: Write noble - gas configuration for fluorine

The noble gas before fluorine is helium. So the noble - gas configuration of fluorine is $[He]2s^{2}2p^{5}$.

Answer:

Nitrogen:
Electron Configuration: $1s^{2}2s^{2}2p^{3}$
Noble Gas Configuration: $[He]2s^{2}2p^{3}$
Fluorine:
Electron Configuration: $1s^{2}2s^{2}2p^{5}$
Noble Gas Configuration: $[He]2s^{2}2p^{5}$