Answer:
Radicand: 2; index: 2
Step-by-step explanation:
[tex]5\sqrt{2}[/tex]
The radicand is the value inside the radical symbol (2)
The index tells which root is being taken. If there is no index written, it is understood to be 2 (a square root).
If you mean
[tex]\sqrt [5] {2}[/tex]
the radicand is 2 and the index is 5.