Not sure about ateroids. If you means asteroids, the Minor Planets Centre, the organisation responsible for collecting observational data for such objects, there was enough information for over 600,000 asteroids for them to have a formal designation - a number.
400
asteroids which have some kind of difference are known as differentiated asteroids and vice versa
planetoids.
Most asteroids are located within the asteroid belt which is between the orbits of Mars and Jupiter. Asteroids are also known as planetoids or minor planets.
Some asteroids are considered associated and are called "groups." Most asteroids are not part of groups but are in a "belt" positioned between Mars and Jupiter. Certain zones of gravitional equilibrium can capture asteroids. These zones are known as LaGrange Points. Jupiter, having the most powerful planetary gravity, has several groups at these points. Two of them, because the individual asteroids in them are named after heroes in the Trojan War, are known as "Trojan asteroids." One group is the "Trojan" group and another is the "Greek" group, even though there's an important Trojan in the Greeks and an important Greek with the Trojans.
400
There are no known asteroids or comets that have impacted Mercury.
The total number of asteroids in the solar system is not known with certainty, as many asteroids are small and difficult to detect, and new asteroids are constantly being discovered. However, astronomers estimate that there are millions of asteroids in the asteroid belt between Mars and Jupiter, and potentially trillions of objects in the Kuiper Belt beyond Neptune. In addition, there are also a number of asteroids that do not reside in either the asteroid belt or Kuiper Belt, but instead follow their own unique orbits. These objects are sometimes referred to as "rogue asteroids," and their exact number is not known. Overall, while the exact number of asteroids in the solar system is uncertain, it is clear that there are many millions, if not trillions, of these small rocky bodies orbiting the sun.
asteroids which have some kind of difference are known as differentiated asteroids and vice versa
Asteroids that occasionally cross the orbit of Earth are known as Near Earth Asteroids. Asteroids that both cross the orbit of the Earth and are large enough to pose a significant threat in the event of an impact are known as Potentially Hazardous Asteroids.
planetoids.
Yes.
The planetoids are also known as planetesimals, as well as asteroids.
Most asteroids are located within the asteroid belt which is between the orbits of Mars and Jupiter. Asteroids are also known as planetoids or minor planets.
The planetoids are also known as planetesimals, as well as asteroids.
yes because they have an orbit
The number of asteroids cannot be counted. It is like counting the number of grains of sand on a beach.