the electron cloud is least dense where the probability of finding an electron is LOWEST
The electron cloud is probably the least dense part of an atom. The electron is certainly the smallest individual component of an atom, but electrons are in motion. And because they are in motion, they describe the volume of the atom. Additionally, they describe a huge volume compared to their size. That translates into the electron cloud "taking up lots and lots of room" but being populated by only a few electrons. The electron cloud has a very, very low density.
pyroclastic cloud
When excited molecules collide with other molecules before they can release a photon!
Transmission: A beam of electrons pass a sample and is absorbed in electron-dense structures, which look black in an image. Scanning: samples are coated with metal and scanned with a beam of electrons.
The density of water, at one atmospheric pressure, is approx 1000 kg/m3. The density of the gas cloud is 1.89*10-22 kg/m3 which means the cloud is approx 1.9*10-25 times (190 octillionths) as dense.
The nucleus is the most dense part of an atom.
nucleus
The electron cloud is probably the least dense part of an atom. The electron is certainly the smallest individual component of an atom, but electrons are in motion. And because they are in motion, they describe the volume of the atom. Additionally, they describe a huge volume compared to their size. That translates into the electron cloud "taking up lots and lots of room" but being populated by only a few electrons. The electron cloud has a very, very low density.
Scientists think that atoms basically look like an electron cloud circling a small, very dense nucleus. The electron cloud is negatively charged, makes up most of the volume of the atom, and has hardly any mass, but the nucleus is positively charged, very small, and contains all of the mass of the atom.
cumulus cloud
Speaking very generally, most atoms consist of a dense nucleus which contains protons and neutrons, and an electron cloud away from the nucleus which contains electrons.
if it's less dense, the cloud continues to rise and the cloud will grow in height. If it's more dense, the cloud will lower and lower, and soon evaporate.
All the parts in an atom are proton,neutron,and electron also there is the outer part it is said to be "electron cloud". the proton and neutron are in the small dense nucleus while the electrons float in unpredictable paths around the nucleus in the "electron cloud"
A stratus cloud.
Cumulus cloud
stratus cloud
Ice Crystals