beta
A positively charged particle that is also a beta particle is a Positron.
An "alpha" particle.
Beta particle electrons (as opposed to Beta particle positrons which have + charge)
The atomic nucleus can emit beta particles (beta radiation). A neutron emits a beta particle when it decays into a proton, and anti-neutrino, and an electron (which becomes the beta particle).
No. There's a reason that a beta particle can only penetrate a couple of mm and that a gamma particle can go through everything.
beta
The strength of a beta particle is its ability to cross the absorber to reach the detector.Now the strength of a beta particle depends upon the energy of the beta particle and thickness of the absorber.
A positively charged particle that is also a beta particle is a Positron.
Not much. A sheet of paper will stop it. The alpha particle is two protons and two neutrons - a helium-4 nucleus. As radiation goes, it's big and fat, and it will "run into" stuff even if it's just flying through air. Depending on its energy, it can penetrate air, but not more than a few inches.
The difference between a beta plus and beta minus particle is the electrical charge. The charges are equal, but opposite. The beta minus particle is an electron with a negative charge, while the beta plus particle is an anti-electron or positron with a positive charge.
An "alpha" particle.
The ability of particulate radiation to penetrate human tissue varies by particle type, and to some degree on the energy of the particle. The three basic types of particulate radiation are the alpha particle, the beta particle and the neutron. Let's look at them. The alpha particle won't penetrate very far at all. As the alpha particle is a helium-4 nucleus, it is massive, and it will be stopped by the outer most layers of the skin. As for beta particles, which are electrons or positrons, they can't go much farther. They'll be stopped before much penetration into the skin. That leaves just one other particle: the neutron. Neutrons have an extreme ability to penetrate tissue. They can do some serious damage, and we don't want to be on the receiving end of them. There are some other particle types, but they aren't generally seen outside the physics lab. These are the "big three" types of particulate radiation, you'll find links below to help you discover more.
negative, -1 to be precise since a beta particle is an electron
A beta particle is an electron (or positron) with high energy and speed.
The beta particle is an electron.
A beta particle is either an electron, or a positron (aka "anti-electron").