Yes in fact male Scorpions kill other males to attract a mate. they will kill each other with its own venom They can't kill each other with venom, as all scorpions are immune to their and other scorpion venom. They sting each other to death.
A scorpions venom has no effect on the scorpion or any other scorpion of the same family. However, if the venom is injected directly into the scorpions nerve ganglion(which would be quite an unlikely...