The relative charge of a neutron is 0 (neutral). and negative electrons close electron A subatomic particle with relative mass of ¹⁄₁₈₄₀. The relative charge of an electron is -1. .

The relative charge of an electron is -1. and neutrons close neutron Uncharged subatomic particle, with a relative mass of 1. The relative charge of a neutron is 0 (neutral)..

Iron is one of the most abundant heavy elements in the universe. Its spectral features stand out in many astronomical spectra ...

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.