Since the atomic nucleus was first proposed in 1911, physicists simply assumed it was round. ​ But are the nuclei of atoms ...

Electrons were once thought to orbit a nucleus much as planets orbit the sun. That picture has since been obliterated by modern quantum mechanics. When you purchase through links on our site ...

Discover the fascinating world of particle physics — the most fundamental building blocks of the universe and the forces that ...

Researchers from the Max-Planck-Institut fuer Kernphysik present new experimental and theoretical results for the bound ...

An international research team led by the Paul Scherrer Institute PSI has measured the radius of the nucleus of muonic helium ...

These will be discussed in Lesson 2. What zooms around the nucleus of an atom? Electrons Which one has a positive charge, a negative charge, and no charge? Proton—positive; electron—negative; ...

Electrons oscillate around the nucleus of an atom on extremely short timescales, typically completing a cycle in just a few hundred attoseconds (one attosecond is a quintillionth of a second).

That's the one where electrons move about the atomic nucleus in circular orbits, like planets orbiting the Sun in our Solar System. The orbits have set discrete energies, and those energies are ...

chlorine also has 17 electrons. The relative mass of a nucleus is the number of protons and neutrons it contains. Because the mass of a proton is equivalent to a neutron, the relative mass of an ...

When two hydrogen atoms get close enough, the electron from each atom feels an attraction from the proton in the other atom's nucleus. This attraction pulls the atoms together. The electrons end up ...

The behavior of the electrons in atoms is complex, forming electron orbitals that have different functions depending on their closeness to the nucleus. The inner shell electrons, called core ...