The C Ionian Mode
Use the seven-sector frame to find what we need.
The Parent Major Scale of C Ionian = C Major (from the second sector clockwise).
The notes of C Ionian and the C major scale are (of course) an exact match.
Note that C is the 1st note of the C major scale and that the Ionian mode is conventionally referred to as the 1st mode.
The chords associated with C Ionian are essentially the chords of C major:
