Question

most significant contribution of Rutherford to the development of atomic structure

Answer 1

1) He said that the entire positive charge of an atom is concentrated in a very small region called the nucleus.
2) The size of the nucleus is very small as compared to the size of the entire atom
3) The electrons revolve at very high speed around this positively charged nucleus in circular orbits.
4) Hence an atom Is electrically neutral.

Answer 2

he gave the concept of nucleus.
Ernest Rutherford (1871 - 1937) discovered alpha and beta rays, set forth the laws of radioactive decay, and identified alpha particles as helium nuclei. Most importantly, he postulated the nuclear structure of the atom.

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