The result of radioactive decay, they are a positively charged, highly ionizing emission which is easily absorbed by tissue paper and poses little risk unless their source is ingested or inhaled.
The result of radioactive decay, they are a positively charged, highly ionizing emission which is easily absorbed by tissue paper and poses little risk unless their source is ingested or inhaled. In 1907 Ernest Rutherford found they were identical to the nucleus of a helium-4 atom, consisting of two protons and two neutrons. For ten points, name this subatomic particle named for the first letter of the Greek alphabet?
The result of radioactive decay, they are a positively charged, highly ionizing emission which is easily absorbed by tissue paper and poses little risk unless their source is ingested or inhaled.
{Alpha} particles (accept alpha rays)