A hydrogen atom has one proton as the nucleus and one electron in the region outside the nucleus ... When the plastic strip is rubbed on the skin, electrons from the skin are transferred to the ...

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 ...

From nearly indestructible metals, like tungsten, to delicate clouds in the sky, atoms make up everything around us. But do ...

Dipole toroidal modes are a unique set of excitations that are predicted to occur in various physical systems, ranging from ...

The mass of electrons is very small compared to protons and neutrons. Since a nucleus contains protons and neutrons, most of the mass of an atom is concentrated in its nucleus. Protons and ...

The nucleus is very small compared to the atom as a whole: as electrons are even smaller, most of an atom is empty space the diameter of a nucleus can be 100,000 times less than the diameter of an ...

Simulations performed on ORNL's Summit supercomputer may point to a solution for the problem of runaway electrons inside a ...

Since electrons have almost no mass, it seemed that something besides the protons in the nucleus were adding to the mass. One leading explanation was that there were electrons and additional ...

The world’s best atomic clocks rely on the energy transitions of electrons that orbit an atomic nucleus. These clocks are so accurate that they gain or lose only a second every 40 billion years.

Given how much lighter electrons are than the particles of an atomic nucleus, it’s not so surprising they’re not made up of anything lighter. So, if electrons have no smaller particles to ...

At first glance, it might seem obvious that atoms touch each other, especially when you consider the material world around us ...

At the beginning of the century, it was believed by physicists that atoms were made up of protons and electrons. This view of ...