1 1. Centipedes are the only arthropods with poison claws for subduing prey. 2  2. Centipedes do not have 100 legs. 3  3. Centipedes have one pair of legs per body segment. 4  4. All centipedes are predators. 5  5. Centipedes can live for several years. 6  6. Centipedes can regenerate lost legs. 7  7. Some centipedes care for their young.
Beta Particle Definition: An electron or positron. The term is generally applied to an electron or positron emitted in radioactive beta decay.
A beta particle (also written as Î²-particle) is the same as an electron. It is often called a high energy electron because it is very fast moving. A beta particle comes from the nucleus of an atom! It has a charge of -1 and very little mass (only 1 Ã· 1840 as big as a proton).The e shows that the particle is an electron. A beta particle is given a mass number of zero because the mass is very small compared to a proton or a neutron.. A beta particle has a negative charge because it is an electron. 2. A beta particle has less mass than an alpha particle but more mass than a gamma ray. See the three types of radioactivity.