The most precise clocks in the world will lose only one second every 300 billion years—and someday they might fit in your ...

Atomic orbitals are the basic building blocks of the atomic orbital model (alternatively known as the electron cloud or wave mechanics ... the energies of certain sub-shells become very similar and so ...

This week got off to a flying start when new science experiments and cargo were launched to the International Space Station, ...

Thus when an atom absorbs or gives off energy (as in light or heat), the electron jumps to higher ... properties of the elements. The shells in which electrons orbit have different quantum numbers ...

Electrons typically travel at high speeds, zipping through matter unbound. In the 1930s, physicist Eugene Wigner predicted that electrons could be coaxed into stillness at low densities and cold ...

In Bohr’s model, if an electron orbit is not already filled ... In 1949, Goeppert Mayer and Jensen developed the so-called ...

The Alkali metals all behave similarly because they all have only one electron in their valence shell, and that single electron is ... numbers and rules simply determine the number of electron ...

Electrons orbit the nucleus in shells ... elements in a group is the same as the group number. The number of electron shells of all the elements in a period is the same as the period number.

In school, you probably learned that an atom was like a little solar system with the nucleus as the sun and electrons as the planets. The problem is, as [The Action Lab] points out, the math tells ...

If the radiation is strong enough, it is possible that a second electron of the atom is also affected: It can be shifted into a state with higher energy and then orbit the atomic nucleus on a ...

Bismuth is an example of a diamagnetic material, yet this is not the behavior we would expect from the element's electron configuration ... layers called shells, which are further subdivided into ...