Mercury is the smallest of the 8 "major planets" with about 5.5% of the mass of Earth. It is smaller but more massive than the largest moons of Jupiter and Saturn. Pluto is now considered a "dwarf planet" along with the asteroid Ceres and three other very distant Kuiper Belt objects.
You might mean Pluto, but that's not a "planet" any more. Mercury is smaller (but more massive) than two moons. (See link)
In 2006 Pluto was degraded to the status of dwarf planet(there is another dwarf planet, Eris, that is more massive than Pluto).
Eris is a massive dwarf planet. It was discovered in 2005 and it is more massive than Pluto by 27 percent.
Mars.
Neptune is more massive and therefore weighs more than mercury. Mercury is the smallest planet in our solar system while Neptune is the fourth largest and most massive planet.
Pluto has been declassified as a major planet, so it seems you are asking whether Pluto is the furthest dwarf planet from Mars. The answer is no since the finding of Eris that is 25% more massive than Pluto.
The dwarf planet Pluto has a more eccentric orbit than Mercury. Pluto's orbit is highly elongated, meaning it is more eccentric, with a high eccentricity of about 0.24 compared to Mercury's eccentricity of 0.21.
well technically its not a planet no more but Pluto
None. Pluto was the samllest planet before it was declassified for being too small. Pluto had a mass of 1.3*1022 kilograms - more than 1020 times (100 quintillion) as massive as your planet.
Yes. It is very slightly smaller than Pluto, though it is more massive.
There are two main similarities between Mercury and Pluto. One is their smaller sizes, although Pluto is far smaller than Mercury. The other is their extreme distance from the sun. So Mercury is the closest known planet to the sun while Pluto was considered the furthest.