A unit strength of a radioactive source equal to one million disintegrations per second.

Polish: Rd, rezerford, rutherford

British chemist who isolated nitrogen (1749-1819).

synonym: Daniel Rutherford.

British physicist (born in New Zealand) who discovered the atomic nucleus and proposed a nuclear model of the atom (1871-1937).

synonyms: Ernest Rutherford, First Baron Rutherford, First Baron Rutherford of Nelson.