Electron is the lightest.
Electron, proton, nucleus, atom
During electron capture, an electron and proton combine and are converted to a neutron.
neutron
The electron, the neutron and the proton are the building blocks of the atom. And of the three, the electron is far and away the lightest. The neutron is slightly heavier than the proton, and either particle is over 1800 times more massive than our little electron.
An atom is composed of three main particles, the proton, electron and neutron. The electron is the lightest among the three.
Electron capture is the absorption of an electron by an atomic nucleus if that nucleus is neutron poor. An electron is captured, usually from an inner electron shell of that atom, and it will convert a proton in the nucleus into a neutron. We know that a neutron is converted into a proton and an electron in neutron decay, so it might be looked at as something of an opposite nuclear reaction where a proton and an electron combine to form a neutron.
It is the atom of deuterium. Its nucleus is composed of a proton and one neutron. The atom has one electron that is orbiting around the nucleus.
Hydrogen contains one proton and one neutron in it's nucleus with one electron orbiting around the nucleus.
hydrgen nucleus
A neutron can transform into a proton, an electron, and an antineutrino through a process called beta decay. During beta decay, a neutron in the nucleus of an atom is converted into a proton, an electron (beta particle), and an antineutrino. This process helps maintain the balance of protons and neutrons in the nucleus.
In beta particle emission, a neutron in the nucleus converts into a proton, an electron (beta particle), and an antineutrino.
It is proton neutron in the nucleus and then electrons in the electron cloud.