Is the G major chord the same as the G7 chord?

Answer:
No it is not the same.

G major has a tonic (root) a third and a fifth
The G major 7 has an added seventh

In the case of G maj 7 the the notes would be G B E and the added sventh is in this case an F#

7 chords are mostly used in jazz and sometimes in pop or rock music in order to alter the harmony of the song.
First answer by Mr.Big Racer. Last edit by Mr.Big Racer. Contributor trust: 6 [recommend contributor recommended]. Question popularity: 2 [recommend question].