The s sub-level contains 1 orbital which can hold 2 electrons. The p sub-level has 3 orbitals each able to hold 2 electrons for a total capacity of 6 electrons. The d has 5 orbitals and can hold a...
Poorly worded question which makes little sense. Most elements have electrons in those sublevels, but elements are not contained within the sublevels, only electrons.
For example, H has a single...