Can Elves kill Ringwraiths?

[Dior]

This topic does bring up the question though, that if elves were able to kill Balrogs, than what is it that would prevent them from killing Wraiths, other than the power of the ring, which didn't prevent Merry/Eowyn from killing one. Seeing as the Balrogs were maiar, and couldn't be killed without their opposition dying, does bring the differences in perspective though. Eh, well I guess you can scrap this post than, unless someone else has something profound to say of this.