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Panspermia began to assume a more scientific form through the proposals of Joens JÃ¶ns Jacob (berzelius), 1834 Hermann. E (richter), 1865 (kelvin), 1871 hermann Von (helmholtz) 1879 and finally reaching the level of a detailed hypothesis through the efforts of The swedish Chemist Svante (arrhenius). 1903
In 1911 the existence of the atomic nucleus was discovered by  Ernest Rutherford through his interpretation of the gold foil  experiment conducted two years earlier by Hans â¦ Geiger and Ernest  Marsden.In 1932 Dmitry Ivanenko proposed the proton-neutron model  of the nucleus. Answered.In Science.he familiar alpha particle scattering by thin gold foil experiment has given evidence for the existence of hard nucleus at the central region of the atom.