<Table> Symmetric M-O stretching vibrations of some aqua ions in solution <Tr> <Th> metal ion </Th> <Th> wavenumber / cm </Th> </Tr> <Tr> <Td> Be </Td> <Td> 530 - 543 </Td> </Tr> <Tr> <Td> Mg </Td> <Td> 360 - 365 </Td> </Tr> <Tr> <Td> Mn </Td> <Td> 395 </Td> </Tr> <Tr> <Td> Fe </Td> <Td> 389 </Td> </Tr> <Tr> <Td> Ni </Td> <Td> 405 </Td> </Tr> <Tr> <Td> Cu </Td> <Td> 440 </Td> </Tr> <Tr> <Td> Zn </Td> <Td> 385 - 400 </Td> </Tr> <Tr> <Td> Hg </Td> <Td> 380 </Td> </Tr> <Tr> <Td> Al </Td> <Td> 520 - 526 </Td> </Tr> <Tr> <Td> Ga </Td> <Td> 475 </Td> </Tr> <Tr> <Td> In </Td> <Td> 400 </Td> </Tr> </Table> <Tr> <Th> metal ion </Th> <Th> wavenumber / cm </Th> </Tr> <Tr> <Td> Be </Td> <Td> 530 - 543 </Td> </Tr> <Tr> <Td> Mg </Td> <Td> 360 - 365 </Td> </Tr>

When will an ionic solid be dissolved in water