Occasionally, and purely by chance, some of these neutrons collide with the nuclei of some of the nitrogen atoms. The nucleus of each nitrogen atom contains seven protons and seven neutrons.

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, ...

The image of an atom, with electrons swarming around a central nucleus bulging with protons and neutrons ... In his new book "CHARGE: Why Does Gravity Rule?", theoretical physicist Frank Close ...

In the cores of neutron stars, the crushing pressures can squeeze apart atomic nuclei, and maybe even protons and neutrons themselves. Neutron stars' surface gravities are so intense that the ...

Now, researchers in the US and South Korea have used a neutron beam to differentiate between genuine antique coins and fakes.

He’s a quantum physicist at Washington State University. He told me that protons – along with neutrons – form the nucleus in the middle of an atom. “Atoms make up all the stuff that we see ...

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 ...

Protons have a charge of +1. Electrons have a charge of -1. Neutrons are neutral, as its name implies. A stable atom has a net charge of 0. In other words, it has an equal number of protons and ...

This symbol shows that chlorine has 35 particles in the nucleus (protons and neutrons), 17 of which are protons. It also tells us that chlorine has 18 neutrons (35 - 17) and, as the number of ...

The strong force holds together quarks, the fundamental particles that make up the protons and neutrons of the atomic nucleus, and further holds together protons and neutrons to form atomic nuclei.

The “lead” of a pencil is actually made of a substance called graphite which is made of carbon atoms. The picture shows a close-up of one carbon atom. A hydrogen atom has one proton as the nucleus and ...