Respuesta :

A: both d and f
B: s
C: f
D: p
E: both s and p



The corrrect answer here is E. (Both s and p) Hope this helps
kenmyna

The orbital which is the first to be filled with electrons in a given principal energy level is   S orbital

 explanation

s  orbital is the first orbital  in every energy level .  Each orbital  contain  a maximum of  two electron  and according   hund's rule   every orbital in a subshell is singly with one electron   before  any one is doubled. Electron fill the lower energy level  to higher energy  orbital.

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