What do comets and asteroids have in common? They are made of ice.
They orbit the Sun.
They are made of metal debris.
They are at the center of the solar system.

They are both celestial bodies orbiting our Sun, and they both can have unusual orbits, sometimes straying close to Earth or the other planets.

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of carbon is as shown here in the image.