A nucleus of an atom can be compared to the sun of a solar system because the nucleus, like the sun, is the largest part of an atom and its electrons orbit around it, much like planets in a solar system. Atoms can also gain or lose electrons similarly to how stars can gain or lose planets.Continue Reading
However, it is important to note a few areas where atoms and solar systems differ. Stars keep planets in orbit through gravity, while nuclei hold electrons through nuclear forces. In addition, experts often emphasize that electrons are not in orbit in the same way that planets are. The location of an electron is probabilistic, so it is not possible to know exactly where it is located at any particular time. In some ways, electrons are in multiple locations at once and they only exist at a specific point if they are observed or otherwise forced to "choose" a position.
However, experts still generally use the solar system model as a means of making the concepts understandable. Since atoms typically operate differently than objects people encounter on a daily basis, analogies make them understandable, and the orbit analogy has proven popular throughout the years.Learn more about Atoms & Molecules
A nitrogen atom's appearance consists of a nucleus that's surrounded by one orbital containing two electrons and a second orbital containing five electrons. The total number of electrons in one atom of nitrogen can be determined by the location of nitrogen on the periodic table of elements.Full Answer >
The atomic radius describes the size of the atom, and although there is no standard definition for the value, it is the distance between the nucleus and the outermost electrons. Atomic radii tend to increase moving down the periodic table, but they decrease moving left to right across the table because electrons are more tightly packed for elements that are closer to the right side.Full Answer >
Rutherford's nuclear model of the atom is a planetary model with electrons orbiting around a compact nucleus of protons, and it serves as the basic model of the atom. His proposed electron orbitals were relatively simple, unlike the later complex ones. However, Rutherford was the first person to propose the existence of the neutron, based on the disparities between atomic mass and atomic number, explains an Indiana Northwest University website.Full Answer >
Every atom is made up of a nucleus surrounded by electrons that orbit the nucleus. Electrons orbit the nucleus because they are attracted to the protons inside of the nucleus while simultaneously repelled by the other electrons.Full Answer >