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.
Lead, iron and water
the electron cloud is least dense where the probability of finding an electron is LOWEST
Balloon
The least dense liquid is found at the bottom of the graduated cylinder, because the less dense it is, the farther it will go down in th graduated cylinder.
A high-school answer would probably be the electron. (Of course, maybe you go to an advanced high school?)
The exosphere is the least dense part of the earth's atmosphere.
The nucleus is the most dense part of an atom.
the nucleus
One could say that the atmosphere is the least dense, but of the surface the crust is the least dense.
the denser part of an atom is the nucleus. about 99% of the mass of an atom is concentrated within the atom.
The bulk of the mass of the atom is concenrated in the small, dense nucleus.
No. In fact it is the most dense planet. The least dense is Saturn.
The heavy, dense nucleus of the atom caused the alpha particles to bounce back in Rutherford's experiment.
Hydrogen is the least dense gas.
Gas planets are least dense.
'Least' is a comparison word. Compared to iron and lead yes cotton is least dense. Compares to oxygen gas and hydrogen gas, no it is not least dense.
Zordon Core.