The answer, thankfully, is yes. Here are five foods that can ward off white hairâ¦ [Read more: Going grey: 9 weird things that can cause you to get grey hair] 1. Walnuts âEating walnuts, which are rich in copper, stops hair going grey,â says Marisa Peer, therapist and author of You Can Be Younger. Itâs all about copper being crucial in melanin production, and melanin giving hair its pigment.
After a radioactive nucleus has emitted a beta particle, the mass number stays the same and the atomic number goes up by 1. A neutron in the nucleus has changed into a proton plus an electron. The proton stays inside the nucleus but the electron is emitted as a beta particle.ome nuclei can decay by emitting either an alpha particle or a beta particle. An example is bismuth where 1/3 of the atoms emit an alpha particle and 2/3 of the atoms emit a beta particle. You can work out which particle is emitted by balancing the equation.
In fact, an alpha particle really is a nucleus - it's the same as the nucleus of a common atom of helium - but it doesn't have any electrons around it, and it's traveling very fast. Alpha particles are a type of ionizing radiation. To describe the production of alpha particles, we have to define radioactive decay. This process can be thought of as follows. Certain combinations of neutrons and protons in a nucleus are stable. For example, in a stable bismuth atom there are 83 protons and 126 neutrons.