<Table> <Tr> <Th> Shell name </Th> <Th> Subshell name </Th> <Th> Subshell max electrons </Th> <Th> Shell max electrons </Th> </Tr> <Tr> <Td> </Td> <Td> 1s </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> 2s </Td> <Td> </Td> <Td> 2 + 6 = 8 </Td> </Tr> <Tr> <Td> 2p </Td> <Td> 6 </Td> </Tr> <Tr> <Td> </Td> <Td> 3s </Td> <Td> </Td> <Td> 2 + 6 + 10 = 18 </Td> </Tr> <Tr> <Td> 3p </Td> <Td> 6 </Td> </Tr> <Tr> <Td> 3d </Td> <Td> 10 </Td> </Tr> <Tr> <Td> </Td> <Td> 4s </Td> <Td> </Td> <Td> 2 + 6 + 10 + 14 = 32 </Td> </Tr> <Tr> <Td> 4p </Td> <Td> 6 </Td> </Tr> <Tr> <Td> 4d </Td> <Td> 10 </Td> </Tr> <Tr> <Td> 4f </Td> <Td> 14 </Td> </Tr> <Tr> <Td> </Td> <Td> 5s </Td> <Td> </Td> <Td> 2 + 6 + 10 + 14 + 18 = 50 </Td> </Tr> <Tr> <Td> 5p </Td> <Td> 6 </Td> </Tr> <Tr> <Td> 5d </Td> <Td> 10 </Td> </Tr> <Tr> <Td> 5f </Td> <Td> 14 </Td> </Tr> <Tr> <Td> 5g </Td> <Td> 18 </Td> </Tr> </Table> <Tr> <Th> Shell name </Th> <Th> Subshell name </Th> <Th> Subshell max electrons </Th> <Th> Shell max electrons </Th> </Tr> <Tr> <Td> </Td> <Td> 1s </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> 2s </Td> <Td> </Td> <Td> 2 + 6 = 8 </Td> </Tr>

The valence shell holds up to two electrons in which 2 elements