They all rotate, but Venus rotates particularly slowly.
Venus
Both Venus and Uranus rotate clockwise, as normally defined. However, the answer is "Venus", because that's the one that rotates slowly.
Venus (about once a year). Not Mars, it rotates almost as fast as Earth.
Mercury
Mercury rotates slowly and has no significant atmosphere.
the moon is spinning around us very slowly
Venus (a "day" is 116.75 Earth days long).
Venus (a "day" is 116.75 Earth days long).
Venus rotates on its axis slower than any other planet.
Mercury rotates very slowly at a rate of one rotation every 58.65 days. Mercury revolves around the sun once every 88 days.
Venus rotates on its axis more slowly than it revolves around the sun. It takes approximately 243 Earth days for Venus to complete one rotation on its axis, but only about 225 Earth days to complete one full orbit around the sun.