<Tr> <Td> Dipole moment </Td> <Td> 0 D </Td> </Tr> <Tr> <Th_colspan="2"> Hazards </Th> </Tr> <Tr> <Td> Main hazards </Td> <Td> mild irritant </Td> </Tr> <Tr> <Td> Flash point </Td> <Td> Non-flammable </Td> </Tr>

What is the oxidation state of the phosphorus and nitrogen atoms in hexachlorocyclotriphosphazene