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.

He called it a neutron, and imagined it as a paired proton and electron. There was no evidence for any of these ideas. Chadwick kept the problem in the back of his mind while working on other things.

Previously this reaction enabled the measurement of protons. However, detecting neutrons in DVCS has been a challenging task. For the first time, the researchers were able to detect neutrons using ...

Atoms are in fact made up of three smaller particles called protons, electrons and neutrons. The protons and neutrons are contained in the nucleus, the tiny centre of an atom, with smaller ...

A neutron star's almost incomprehensible density causes protons and electrons to combine into neutrons—the process that gives such stars their name. The composition of their cores is unknown ...

He called it a neutron, and imagined it as a paired proton and electron. There was no evidence for any of these ideas. Chadwick kept the problem in the back of his mind while working on other things.