Can I feed my emperor scorpion meal worm beetles

All my meal worm beetles are male so no eggs can I feed them to my scorpions?

If I remember right you can , they just usually do not like them and nutrition is low.

You could try, but in my experience P. imperator do not eat the beetles. They will eat meal worms, but not adult beetles.

Technically, your question leads to a Yes, you can.

Whether will they take it or not is another issue.

If you have Tarantula slings, you can feed the beetles to them, they love it!

Do I pre kill the beetles for the tarantula sling, cuz I do have one?

No need to pre-kill it. The beetles are basically harmless to the sling, as long as the beetle is no larger than the abdomen of the tarantula sling, it should be fine.

If your sling is hungry, you should be hearing a "crunch" once you throw in the beetle.

My Iurus used to enjoy the beetles, she wouldn't eat the mealworms but she would readily take a freshly metamorphosed beetle.
But like Ludedor suggested, I don't think the nutritional value can be that great.