Although no currently known element contains electrons in $g$ orbitals in the ground state,it is possible that such an element will be found or that electrons in excited states of known elements could be in $g$ orbitals. For $g$ orbitals,$l = 4$. What is the lowest value of $n$ for which $g$ orbitals could exist? What are the possible values of $m_l$? How many electrons could a set of $g$ orbitals hold?

• A
  $n = 6, m_l = -4$ to $+4$,no. of electrons $= 18$
• B
  $n = 5, m_l = -2$ to $+4$,no. of electrons $= 9$
• C
  $n = 5, m_l = -3$ to $+3$,no. of electrons $= 9$
• D
  $n = 5, m_l = -4$ to $+4$,no. of electrons $= 18$