First, let's explore the atom's architecture. Formed from a cluster of protons and neutrons at the center of an atom, a nucleus is 10,000 times smaller than the atom as a whole, "like a fly in a ...

In 1911, Rutherford published his version of the atom, which included a positively charged nucleus orbited by electrons. This model arose when Rutherford and his assistants fired alpha particles ...

A new particle accelerator aims to unlock secrets of bizarre atomic nuclei. The Facility for Rare Isotope Beams will help physicists learn how elements form in the distant environs of space ...

We have other ways to "feel" the shape of atoms without seeing them, however. Last week physicists published a study in the journal Nature measuring the shape of the nucleus of a Radium-224 (Ra-224) ...

Now, as for "breaking" an atom, this typically refers to splitting the nucleus. As a quick aside, it is not hard to remove some of the electrons from the cloud.

They realized that each atom had a dense, heavy, positively charged nucleus surrounded by a cloud of tiny, negatively charged electrons. With that general picture in mind, their next step was to ...

a piece of tissue paper and it came back and hit you. - E. Rutherford The Rutherford model is now recognized as a useful metaphor, but, as soon as you get into the details, it falls apart ...

The atom’s nucleus is surrounded by a neutron shell just 0.28 trillionths of a millimeter thick. By scattering electrons off of lead, the Lead Radius Experiment, or PREX-II, ...

First, let's explore the atom's architecture. Formed from a cluster of protons and neutrons at the center of an atom, a nucleus is 10,000 times smaller than the atom as a whole, "like a fly in a ...

They realized that each atom had a dense, heavy, positively charged nucleus surrounded by a cloud of tiny, negatively charged electrons. With that general picture in mind, their next step was to ...