Adding a proton to an atom makes a new element ... An atom's electron configuration refers to the locations of the electrons in a typical atom. Using the electron configuration and principles ...

And then, right in the center of that space, there's a tiny nucleus — a dense knot of protons and neutrons that give the atom most of its mass. Those protons and neutrons cluster together ...

The picture shows a close-up of one carbon atom. A hydrogen atom has one proton as the nucleus and one electron in the region outside the nucleus. The electron and proton are attracted to each other.

DEEP in the heart of every atom lurk protons, tiny particles from which the chemical elements were forged, first in the searing heat of the big bang and then in the nuclear furnaces of stars.

This is precisely the difference between the new, smaller, dimension of the proton, the nucleus of the hydrogen atom, and the value which has been assumed so far. Instead of 0.8768 femtometres it ...

The center of an atom, the nucleus, is composed of both protons and neutrons; the number of protons in the nucleus determines an atom’s “atomic number,” and therefore, its place on the ...

Chadwick's own research focused on radioactivity. In 1919 Rutherford had discovered the proton, a positively charged particle within the atom's nucleus. But they and other researchers were finding ...

But a few years back, researchers put a heavier version of the electron, called a muon, in orbit around a proton. This formed an exotic, heavier version of the hydrogen atom. And here, measuring ...

Figure 1: Proton transport through 2D crystals. Taken together, our observations establish that monolayers of graphene and hBN constitute a class of proton conductors that raise intriguing ...

Still, no one knows how those protons and neutrons (together known as nucleons) behave inside an atom. Outside an atom, protons and neutrons have definite sizes and shapes. Each of them is made up ...