Five years later, scientists were able to peer inside a hydrogen atom using a "quantum microscope," resulting in the first direct observation of electron orbitals. And now we have the first X-ray ...

The size of the atom compared to the size of the nucleus ... so that you can see the nucleus and the electron orbits together in the same view. And I'm okay with that, because the goal here ...

Theorists later suspected that the magnetic field had converted ordinary barium atoms into exotic Rydberg atoms, in which the outermost electron left the atom and moved in huge, cometlike orbits. When ...

Part I, appearing in July 1913, described the quantum rules for electron orbits and quantum jumps in the hydrogen atom, explaining the spectrum of colors it emitted. In Part II, Bohr described the ...

Scientists have provided proof for a new state of matter: an electron orbits a nucleus at a great distance, while many other atoms are bound inside the orbit. What is inside an atom, between the ...

In the past, such events were regarded as 'momentary' or 'instantaneous': An electron orbits the nucleus of an atom—in the next moment it is suddenly ripped out by a flash of light. Two ...

To salvage the atom, Bohr had to invent new rules that ... But back to Bohr, a quantized angular momentum meant that the electron's orbits were quantized, or separated in space.

In the past, such events were regarded as 'momentary' or 'instantaneous': An electron orbits the nucleus of an atom -- in the next moment it is suddenly ripped out by a flash of light. Two ...

Today, this model is known as the quantum model or the electron cloud model. The inner orbitals surrounding the atom are spherical but the outer orbitals are much more complicated. An atom's ...

Higher orbits could have twice that value ... But the electron also has kinetic energy, which works to send the electron flying away. For a stable atom, these two are in balance.

the atom of hydrogen. Hydrogen atoms consist of a heavy nucleus with one positively-charged proton around which a single, much smaller and lighter, negatively charged electron orbits. The whole ...