Do rattle snakes have venom

yes
Yes, of coarse. They are very deadly.

Yes, of COURSE. But they are not very deadly. One out of one thousand bites is fatal, and there are an average of two thousand bites a year. Plus, the fatal ones are usually sustained by infants or someone allergic to the venom.
yes but are you trying to say venomous?
Yes. They are pit vipers, along with copperheads and cottonmouths, and all members of this family are venomous.