It's not in orbit around Neptune, it's in direct orbit around the sun, so is not a satellite or moon of Neptune. Although it their gravitational pulls effect each other, Pluto does not go round and round Neptune.
Mercury takes 88 days to orbit the Sun once.
The orbits of Neptune and Pluto appear to cross each other. However, because of their alignment, they can never collide or even approach close to each other.Pluto orbits in a very long elliptical shape. Its orbit sometimes passes within that of Neptune. Then, for about 20 years, it becomes closer to the sun than Neptune.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune in that order The order is often remembered by "My Very Earthly Mother Just Sat Upon Needles" Where the first letter of each word in the mnemonic corresponds to the first letter of the planets in the order of distance from the sun. Note: no planets orbit the sun in a perfect circle, but a shape close to a circle (more like an oval), that is called an ellipse.
That would be Mercury and Neptune.
Mercury orbits the sun 4.149 times each year
Mercury averages about 0.35 AU from the Sun, and Saturn is about 9.5AU from the Sun. So depending on where each planet is in its orbit (or more specifically, where Mercury is in its orbit) Saturn will be anywhere from 9.2 AU to 9.8 AU from Mercury.
The amount of time it takes for a planet to orbit the sun depends on the planet's distance from the sun and its orbital speed. On average, it takes about 24,000 to 26,000 hours for all the planets to complete one orbit around the sun. However, each planet has a different orbital period, ranging from about 88 days for Mercury to nearly 165 years for Neptune.
A month on Earth is based on the amount of time it takes for the moon to make an orbit. Uranus has at least 27 moons, each with a different orbit time, so a month on Uranus doesn't make much sense.
inner planets <<>> Pluto has a very elliptical orbit and Pluto crosses inside the orbit of Neptune during its travel. However Pluto has a highly inclined orbit as well so there is no likelihood of a collision.
No they each have its own orbit around the sun and they do not collide
It takes Neptune 165 Earth years to circle the Sun ONCE. The amount of time it takes for any planet to circle the sun is one year. Its year is longer because it is further away. Its orbit is much larger than Earth's.