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Pentavalent or trivalent

Exercise and reference answers

Left
Pentavalent
Items
  1. Item
    Arsenic
    Answer
    Pentavalent
  2. Item
    Antimony
    Answer
    Pentavalent
  3. Item
    Phosphorus
    Answer
    Pentavalent
  4. Item
    Indium
    Answer
    Trivalent
  5. Item
    Boron
    Answer
    Trivalent
  6. Item
    Aluminium
    Answer
    Trivalent
Right
Trivalent
Instructions
Swipe left for pentavalent, right for trivalent.

Explanation

_Source: syllabus Physics Part II, Chapter 14, Semiconductor Electronics._
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