<Tr> <Th> Known for </Th> <Td> Periodic table, law of octaves </Td> </Tr> <Tr> <Th> Awards </Th> <Td> Davy Medal (1887) </Td> </Tr> <Tr> <Td_colspan="2"> Scientific career </Td> </Tr> <Tr> <Th> Fields </Th> <Td> Analytical chemistry </Td> </Tr>

Which group of elements is missing from newlands periodic table