# Which shell would be the first to have g-subshell?

5th energy shell would be the first to have a g-subshell. For l = 4,
m =−4,−3,−2,−1,0,+1,+2,+3,+4 i.e., 9 values which means 9 orbitals. Each p subshell holds at most 6 electrons. Each d subshell holds at most 10 electrons. Each f subshell holds at most 14 electrons. Each g subshell holds at most 18 electrons.