Electric range will need a 220 volt line and a separate dedicated breaker in the main panel. Nothing to play around with. Romex cannot be used on a 220 line. You definitely need an electrician.
It depends on the amps and kw your stove draws. Under 50 amps and 12kw, 8/3 is appropriate. Over that and you need 6/3. Both require a 240 line with a 2 pole breaker. (In the U.S. 220 and 240 are the same thing.) Your stove is probably a 120/240 load, meaning it needs 2 hots, ground, and neutral. Distance can also come into play if the line will be more than 50 ft. from breaker to appliance. Code requires the 3 wire (actually 4 wires when including the ground), so a 4 wire plug/outlet. Check the manufacturers website for the installation instructions. Romex is a brand name like Kleenex. For most people, it refers to NM-B, non-metalic cable in the 12/2 or 14/2 size used to wire most home needs. We all just call it "Romex." Southwire is the company that makes Romex in all kinds of configurations including the 8/3 you are talking about. Stranded is fine unless the manufacturer calls for solid for some reason. If you are not comfortable wiring inside your electrical box, call an electrician.
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Hire an electrician. There are codes and permits involved.
Here is a video regarding codes for romex
https://www.youtube.com/watch?v=Stx8wm8qQvY
George,
What are you running the wire for? There is no one right answer to your question.
a electric range
can 8/3 romex be used on 220 volt
It depends on the amps and kw your stove draws. Under 50 amps and 12kw, 8/3 is appropriate. Over that and you need 6/3. Both require a 240 line with a 2 pole breaker. (In the U.S. 220 and 240 are the same thing.) Your stove is probably a 120/240 load, meaning it needs 2 hots, ground, and neutral. Distance can also come into play if the line will be more than 50 ft. from breaker to appliance. Code requires the 3 wire (actually 4 wires when including the ground), so a 4 wire plug/outlet. Check the manufacturers website for the installation instructions. Romex is a brand name like Kleenex. For most people, it refers to NM-B, non-metalic cable in the 12/2 or 14/2 size used to wire most home needs. We all just call it "Romex." Southwire is the company that makes Romex in all kinds of configurations including the 8/3 you are talking about. Stranded is fine unless the manufacturer calls for solid for some reason. If you are not comfortable wiring inside your electrical box, call an electrician.