Question

5. A positive ion is formed when
(a) a valence electron breaks away from t
(b) there are more holes than electrons in
(c) two atoms bond together
(d) an atom gains an extra valence electro
6. The most widely used semiconductive mat
(a) germanium (b) carbon
(c) co
7. The difference between an insulator and a​

Answer 1

Answer:

5) (a) a valence electron breaks away from the outer most shell or Energy level.

Positive ions are formed by atoms or molecules suffering an inelastic collision with an energetic electron in which an electron is lost from the atom or molecule (electron impact ionization).

6) (a)germanium (Ge).

Ge are most widely used semiconductors because of their atomic structures. They have 4 electrons in valence shell which forms four covalent bonds with neighboring atoms in crystal lattice which can be altered by adding dopants.

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