Modern ranges will need:

1) A black +120V line

2) A red -120V line (red to black gives the 240V spread)

3) A white neutral line (to run items that need less voltage [120])

4) A green grounding line in case something goes wrong, it will cause
stray voltage to flow freely and safely to the earth and cause the
breaker to trip.

I recommend you get a few books on wiring from your library and perhaps
a book or booklet on wiring principles from a hardware store or online.
They're worth it and they'll pay for themself in no time and help keep
you and your house safe.