T he atomic nucleus is made up of protons and neutrons, particles that exist through the interaction of quarks bonded by gluons. It would seem, therefore, that it should not be difficult to ...

Number of protons Z = 30 Number of protons + neutrons A = 64 Number of neutrons N = 64 - 30 = 34 Since this is a nucleus there are no electrons There are 30 protons and 34 neutrons.

Physicists know from previous experiments that what happens at the nuclear scale to protons and neutrons also affects their ...

An element with 17 protons will always be chlorine. However an element's mass numbers can vary, which means that it can have different numbers of neutrons. So although chlorine has a mass number ...

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.

Researchers from Kyushu University, Japan have revealed how a special type of force within an atom's nucleus, known as the ...

This article was originally published with the title “ What Holds the Nucleus Together? ” in Scientific American Magazine Vol. 189 No. 3 (September 1953), p. 58 doi:10.1038 ...

112 electrons moving around a nucleus consisting of 112 protons and 165 neutrons. Copernicium should behave as a transition metal, as it is below zinc, cadmium and mercury in group 12, and its ...

British philosopher Bertrand Russell said of the difference between our physical world experience and the scientific world of continually changing matter, “There is … some conflict between what common ...

The nucleus of each atom contains protons and neutrons. While the number of protons defines the element (e.g., hydrogen, carbon, etc.) and the sum of the protons and neutrons gives the atomic mass, ...

which is now the shortest-lived known superheavy nucleus. The strong force ensures cohesion in atomic nuclei consisting of protons and neutrons. However, as the positively charged protons repel ...