Scientifically it would be a coma.
A cloud of gas surrounding the nucleus.
It is neither. It is a negatively charged particle that is in a cloud around the nucleus.
Jan Hendrik Oort suggested that comets come from the Oort Cloud. This is sometimes called the Oort Hypothesis.
The Oort Cloud
It has been suggested that comets originate in the Oort cloud and then travel in long elliptical orbits around the Sun.
It seems like you mean the "tails" of comets.
A cloud of gas surrounding the nucleus.
nucleus is in the middle and the electron cloud is around it
Electrons are what form the cloud around a nucleus
It is the electron cloud that surrounds the nucleus of an atom. The electrons move in their orbits around the nucleus, and they form the cloud.
No it does not. The Oort cloud is not a planet. It is a sphere of comets around our solar system.
The cloud around an atom's nucleus is called an electron cloud. An electromagnetic force binds electrons inside an electrostatic potential well, which surrounds the nucleus.
The comets with long periods of revolution around the Sun.
electronic cloud is the presence of free electrons around the nucleus
electrons. (electron cloud)
The coma is a giant cloud of dust and gases around the nucleus.
Electron in an atom is represented by electron cloud around the nucleus