G sharp (enharmonic A flat).
The leading tone is the seventh scale degree of the diatonic scale which in F Major is the note "E".
The leading tone in a scale is one half-step below the tonic. In the key of C# major, the leading tone is B#.
The leading tone is the seventh note in the scale. For D-flat major, this would be C.
The leading tone in a key is one half-step below the tonic. In the key of A major, the leading tone is G-sharp.
E
E#
B-flat
The leading tone is one half-step below the tonic, so in the key of B-flat the leading tone is A.
G sharp (enharmonic A flat).
F sharp is the leading note (7th degree) of the G major scale.
resolution
The specific name is called the Leading Tone.