Is this symbol for the letter N common?

1. What is this symbol N?
2. Is ñ a letter?
3. What is the symbol for N with tail?

What is this symbol N?

nitrogen (N), nonmetallic element of Group 15 [Va] of the periodic table.

Is ñ a letter?

The only letter in the Spanish alphabet that originated in Spain, the Ñ is not only a letter but a representation of Hispanic heritage and identity as well. The Ñ's story started with 12th-century Spanish scribes.

What is the symbol for N with tail?

The symbol [ŋ] is usually called "eng" [ɛŋ] . It is like an [n] with the tail of a [ɡ]. Things to look out for: In spelling, the letter combination ng is usually just the single sound [ŋ], but occasionally there really is a [ɡ] sound too.