<Tr> <Td> Helium (laboratory grade) </Td> <Td> 22.30--44.90 </Td> </Tr> <Tr> <Td> Argon </Td> <Td> 2.70--8.50 </Td> </Tr> <Tr> <Td> Neon </Td> <Td> 60--120 </Td> </Tr> <Tr> <Td> Krypton </Td> <Td> 400--500 </Td> </Tr>

Why is helium in the noble gas family