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.
alpha particle is doubly ionized helium nuclei which has a mass slightly less than 4 a.m.u due to lack of two electrons. beta particle is electron itself with mass = 9.1 x 10^-31kg. gamma ray is a high energy photon and like all photons it is massless.