What mode is a G to G scale with all naturals in?

The scale in question, which spans from G to G with all natural notes, is indeed in the Ionian mode. The G to G scale with all naturals corresponds to the G major scale, which consists of the notes G, A, B, C, D, E, and F#. The Ionian mode is essentially the major scale and is characterized by its whole and half step pattern, specifically whole, whole, half, whole, whole, whole, half.

In the context of the provided options, identifying the correct mode requires understanding each mode's structure. For instance, the Mixolydian mode starts on the fifth degree of the major scale and has a lowered seventh degree. If you were to consider a G Mixolydian scale, it would involve a G major scale with an altered seventh note (F instead of F#), which does not apply here.

Phrygian and Dorian modes provide additional variations in their scale structure, but neither aligns with the G to G natural scale as it does not contain the characteristics of these modes. In summary, understanding that the G major scale is representative of the Ionian mode clarifies that it is the correct choice for this question, emphasizing the fundamental nature of the Ionian