<Tr> <Th> Element category </Th> <Td> post-transition metal </Td> </Tr> <Tr> <Th> Block </Th> <Td> p - block </Td> </Tr> <Tr> <Th> Electron configuration </Th> <Td> (Kr) 4d 5s 5p </Td> </Tr> <Tr> <Th> Electrons per shell </Th> <Td> 2, 8, 18, 18, 3 </Td> </Tr>

M to l transition in atomic number 74