The size of an atom is only a few angstroms at most - there are 10 billion angstroms in 1 metre. This video also looks at the basic parts of an atom (protons, neutrons and electrons) and why the ...

in a central nucleus about 10,000 times smaller than the atom itself. All of the negative charge was held in the electrons, which must orbit the dense nucleus like planets around the sun.

This attraction holds the atom together. It is not possible to locate the exact position of an electron, but the electron cloud shows the region where an electron is most likely to be. When the ...

When building an atom, pay close attention to the particles' electrical charges. Protons have a charge of +1. Electrons have a charge of -1. Neutrons are neutral, as its name implies. A stable ...

For brief instants mesons may spin like electrons on orbits around atomic nuclei. The X-rays they emit, as they jump from orbit to orbit, may illuminate the nature of the nuclear binding forces ...

Relativistic electrons in the outer Van Allen belt wreak havoc with satellites in geosynchronous orbit, but how they reach such high energies has been unclear. New data identify gyro-resonant wave ...

Niels Bohr adapted Ernest Rutherford's nuclear model. Bohr did calculations that led him to suggest that electrons orbit the nucleus in shells. The shells are at certain distances from the nucleus.

Spintronics: A field of electronics that exploits the intrinsic spin of electrons, in addition to their charge, for information processing and storage. Spin-Orbit Interaction: A coupling between ...