Na+ has completely filled K and L shells. Explain.
EXPLANATION: Atomic number of Na ( sodium) is 11.Its electronic configuration is 2,8,1. Plus one charge indicates that sodium loses its one electron from outermost shell. Removing one electron from outermost shell gives electronic configuration as 2,8. i.e. completely filled K and L shell. Hence, Na+ has completely filled K and L shells. Final Answer Maximum number of electrons in K shell is 2. Maximum number of electrons in L shell is 8. Electronic configuration of Na+ is 2,8. Hence, Na+ has completely filled K and L shells.
