Title: Valence Electrons

Drag the words into the correct boxes

Q: Silicon which is in group 14 of the periodic table has [...] valence electrons. Group 13 elements like Boron, Aluminum or Gallium have [...] valence electrons and thus are used for [...] doping. Group 15 elements like Nitrogen, Phosphorus or Selenium have [...] valence electrons and are thus used for [...] doping.
A: 4; 3; p-type; 5; n-type