The element with the electron configuration [Ne]3s^2 3p^5 is in group 15.
The element that has the electron configuration [Ne]3s23p5 is in group 15.
We can determine this based on the information provided in the reference. The electron configuration [Ne]3s23p5 corresponds to phosphorus (P). According to the reference, phosphorus is in the third group in the p-block, and it has 3 electrons in the p shell.
Therefore, the element with the given electron configuration is in group 15.