<Table> <Tr> <Th_colspan="2"> Gilbert N. Lewis </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> </Th> <Td> (1875 - 10 - 25) October 25, 1875 Weymouth, Massachusetts </Td> </Tr> <Tr> <Th> </Th> <Td> March 23, 1946 (1946 - 03 - 23) (aged 70) Berkeley, California </Td> </Tr> <Tr> <Th> Nationality </Th> <Td> American </Td> </Tr> <Tr> <Th> Known for </Th> <Td> Covalent bond Lewis dot structures Valence bond theory Electronic theory of acids and bases Chemical thermodynamics Heavy water Named photon Explained phosphorescence </Td> </Tr> <Tr> <Th> Awards </Th> <Td> Fellow of the Royal Society Willard Gibbs Award (1924) Davy Medal (1929) </Td> </Tr> <Tr> <Td_colspan="2"> Scientific career </Td> </Tr> <Tr> <Th> Fields </Th> <Td> Physical chemist </Td> </Tr> <Tr> <Th> Doctoral advisor </Th> <Td> Theodore William Richards </Td> </Tr> <Tr> <Th> Doctoral students </Th> <Td> Michael Kasha Harold Urey Glenn T. Seaborg Joseph Edward Mayer </Td> </Tr> <Tr> <Th> Influences </Th> <Td> Irving Langmuir Merle Randall </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Gilbert N. Lewis </Th> </Tr> <Tr> <Th> </Th> <Td> (1875 - 10 - 25) October 25, 1875 Weymouth, Massachusetts </Td> </Tr>

Who came up with the idea of the atom and when