This gas is neon.
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Noble gas notation is used to represent the electron configuration of an element in a condensed form, by using the symbol of the nearest noble gas that precedes the element. In the case of fluorine, the noble gas notation would be [He] 2s22p5, indicating that fluorine has two electrons in the 2s orbital and five electrons in the 2p orbital.
The closest noble gas to fluorine is neon. Neon is located directly above fluorine on the periodic table.
Noble gases are, for all intents and purposes, unreactive - there are a few noble gas compounds but you have to really work at it to convince noble gases to form bonds. Fluorine is an extremely reactive gas, hence it is not a noble gas. It is a halogen - the most reactive halogen of them all.
No, OF2 does not have a noble gas structure. This molecule is formed from oxygen and fluorine, so it is not a noble gas.
The noble gas nearest to Phosphorus (P) is Argon (Ar).