How does the size of the atomic nucleus compare to the size of the atom?
We have two examples: the first is, if the Atom is the size of a New York baseball stadium, then the nucleus is the size of a flea perched on the pitcher's mound; and next, if the atom is one mile [1.6 km] across the atomic nucleus would be two-thirds of an inch [< 2 cm] in diameter. From this we can state that the Atom is 99.9999 % empty space.
The atom is many times larger than the size of the nucleus, about as much larger as a cathedral is compared to a housefly. However, it should be noted that the "size" of anything as small as an atomic nucleus or even a whole atom can not, because of the Heisenberg Uncertainty Principle, be specified as precisely as the size of a conventional object. Not only that, but the protons and neutrons that combine to…
The nucleus of the atom has a diameter of about meter, whereas the atomic diameter is about meter. This means that the nucleus has a diameter 10,000 times smaller than the atom. The nucleus of the atom has a diameter of about meter, whereas the atomic diameter is about meter. This means that the nucleus has a diameter 10,000 times smaller than the atom.
Atomic Size is the going across any period, atomic radius is decreasing in size due to the increase in the number of electrons is attracted toward the nucleus. Going down any group, there are a large increase in atomic size. The size of an atom depends on where the electrons are distributed outside the nucleus.
We know that the nucleus of an atom contains the nucleons, the protons and neutrons that make up that atom. This is almost all the mass of the atom, and these protons and neutrons are bound very tightly. That translates into the fact that the nucleus takes up almost none of the volume that the atom as a whole occupies. The orbiting electrons that are in the electron cloud actually define the volume of the…
Atomic size decreases even as atomic number and mass increases (within a period) because a greater number of electrons means a greater amount of attraction between the electron cloud and the positively charged nucleus. This increase in electronegativity draws the outer level of the atom a bit closer to the nucleus, making the overall size of the atom smaller.