Step-by-step explanation:
The spectroscopic notation involves writing out the full electron configuration for the element.
Flourine has atomic number of 9.
The electronic configuration is given as; 1s2 2s2 2p5
The noble gas notation has the format;
[noble gas]electrons where the noble gas is the nearest one that occurs before the element.
The nearest electron before carbon is Helium.
The notation is given as;
[He]2s2 2p2