Atomic nuclei are much-much smaller than cell nuclei.
Why? Because a cell nucleus contains an enormous number of molecules, each molecule built from a number of atoms, with every single atom containing a tiny little (atomic) nucleus. For instance, an oxygen atom (which is a common component of living cells - think about water, H2O) is about 20 thousand times larger in diameter than its (atomic) nucleus.
Actually, if you magnified a typical cell nucleus (6 μm of diameter for average mammalian cells) to the size of the Earth (diameter of Earth: 12756.2 km), then the oxygen's atomic nucleus (actual diameter: 5.4 fm) would look like a half-inch (12.8 mm) ball at the same magnification.
That means that - as far as size is concerned - the atomic nucleus compares to the cell nucleus as a blueberry (or a smaller hazelnut) compares to our planet.
It depends on what you mean by "small." The nucleus contains essentially all the mass of the atom, so in terms of mass an electron is much smaller than either an atom or a nucleus. However, the volume occupied by the electrons in an atom is essentially the same as the volume of the atom itself. The nucleus is much, much smaller in extent.
Electron is the smallest thing the world currently knows now.
Electron in an atom is represented by electron cloud around the nucleus
An electron in a 2s orbital is on average closer to the nucleus.
The particle not found in the nucleus is the electron
As it has more electron shells between the nucleus and the outermost electron, and as group 1 elements react by losing there outermost electron, the more shielding effect between the nucleus and the electron, the smaller the force of attraction on the electron, so the more readily it will react as less energy is needed to break the bond between the outer electron and the positive nucleus.
a proton is a part of the atom, more specifically the nucleus (which also contains neutrons) and the electron is an even smaller particle that rotates around the nucleus of the atom and has a mass so minuscule even to an atom it is generally given the weight of zero.
Because the charge/mass ratio of a nucleus is smaller than the charge/mass ratio of an electron
an electron is much much smaller than an atom. An electron is a portion of the nucleus in an atom.
A electron(s) in a orbital around a nucleus made of protons and neutrons.
Attraction gets smaller.
The farther an electron is from the nucleus, the greater its energy.
nucleus is in the middle and the electron cloud is around it
Electron in an atom is represented by electron cloud around the nucleus
An electron is not the largest part of an atom.An electron is the smallest component of an atom. Relatively, if a neutron or proton were 1 unit in size, an electron would be 1/1840 units in size. :3Read more: An_electron_is_the_largest_part_of_an_atom
An electron is what orbits the nucleus. The nucleus is made of protons and neutrons
The particle not found in the nucleus is the electron
An electron in a 2s orbital is on average closer to the nucleus.
Electrons are found in the electron cloud that surrounds the nucleus.