The most likely explanation is that Venus suffered a cataclysmic collision with another object early in its history, which slowed its rotation.
That's a little tricky as the way Venus rotates is different than the rest of the planets. But if you count when the sun rises on a given section of Earth and Venus, then Earth will have 365 days compared to about 2 for Venus in about the same time.
Mercury and Venus are the planets that are closer to the Sun than Earth.
Mercury and Mars are the only planets smaller than Venus.
In fact, Venus, Uranus, and the "dwarf planet" Pluto orbit the Sun in the same direction as all the other planets. So all the planets orbit in the same way.However they rotate in the opposite direction to the other planets.
Both Venus and Uranus have a retrograde axial spin, they rotate clockwise when viewed from above their north pole. All of the other planets rotate anticlockwise (counter clockwise).
Most planets spin counter-clockwise in our solar system, the same direction as they orbit (as seen looking down from above the Earth's north pole); the exceptions are Venus which spins clockwise (i.e., retrograde or "upside down"), and Uranus which rotates pretty much on its side (about 98 degrees to the plane of the ecliptic).
Venus rotates on its axis in the opposite direction to most other planets, a phenomenon known as retrograde rotation. This means that the Sun rises in the west and sets in the east on Venus. Additionally, Venus has an extremely slow rotational speed, with a day on Venus lasting longer than a year on the planet.
The planets that are smaller than Venus are: Jupiter, Earth, Neptune, Uranus, and Saturn. Pluto is no longer on the list
Yes.
All planets rotate, although Venus does so very slowly. The spin of the planets represents the momentum remaining from their formation (accretion) when the solar system formed. Saturn rotates much more quickly than the Earth, which has been slowed by the gravitational effect of the Moon.
All planets orbit the sun in the direction that the sun is rotating. There are actually two planets that rotate by retrograde motion and are exceptions to this rule. These planets are Venus and Uranus.
Yes, some faster than others. In fact, virtually all spacial bodies rotate.