Mercury doesn't "have planets".
Mercury, Venus, Earth and Mars.
The rocky planets are(in order)... Mercury, Venus and of course, Mars
Mercury is the planet closest to the sun. Next is Venus and then Earth, therefore, they are the closest planets to Mercury.
Mercury
These are also known as the four inner planets or terrestrial planets. These are mercury, Venus, Earth, and Mars.
The Rocky Planets, or Inner Planets, include Mercury, Venus, Earth, and Mars.
The four planets which are closest to The Sun, which are Mercury, Venus, Earth and Mars, are all classed as rocky planets.
They are the eight planets Mercury to Neptune.
Mercury is the smallest of the eight planets.
Mercury, Venus, Earth, and Mars are known as rocky planets.
Mercury is a rocky planet. The inner planets (first four planets from the sun) are rocky planets (which means that you could stand on them) and are the smallest. While the outer planets (last four planets from the sun) are gas planets and the biggest.