<Tr> <Td> 56 </Td> <Td> 67 </Td> <Td> holmium </Td> <Td> Ho </Td> <Td> </Td> <Td> 1.4 </Td> <Td> 1.2 </Td> <Td> </Td> <Td> 1.3 </Td> <Td> </Td> </Tr> <Tr> <Td> 57 </Td> <Td> 65 </Td> <Td> terbium </Td> <Td> Tb </Td> <Td> </Td> <Td> 1.1 </Td> <Td> 0.94 </Td> <Td> </Td> <Td> 1.2 </Td> <Td> </Td> </Tr> <Tr> <Td> 58 </Td> <Td> 69 </Td> <Td> thulium </Td> <Td> Tm </Td> <Td> </Td> <Td> 0.48 </Td> <Td> 0.45 </Td> <Td> </Td> <Td> 0.52 </Td> <Td> </Td> </Tr> <Tr> <Td> 59 </Td> <Td> 35 </Td> <Td> bromine </Td> <Td> Br </Td> <Td> </Td> <Td> 0.37 </Td> <Td> </Td> <Td> </Td> <Td> 2.4 </Td> <Td> 391,000 </Td> </Tr>

How are metals found in the earth crust