Electrical Classification of Materials

Question 1

The _____ of an atom is composed of the nucleus and the inner orbits.

Answer 1

Core

Question 2

The 3 Electrical Classification of Materials

Answer 2

Conductors, Insulators, Semiconductors

Question 3

Conductors characteristics

Answer 3

Easily conducts electrical current
• Less than four valence electrons

Question 4

Insulators characteristics

Answer 4

Does not conduct electrical current at normal conditions

• More than four valence electrons

Question 5

Semiconductors characteristics

Answer 5

Between conductor and insulator in terms of electric conductivity
• Exactly four valence electrons

Question 6

energy level of an electron when it is in the valence shell

Answer 6

Valence Band

Question 7

energy level required to remove an electron out of the valence shell

Answer 7

Conduction band

Question 8

______ and _____are the most widely used single element semiconductor material in the production of semiconductor electronic devices.

Answer 8

Silicon and germanium

Question 9

A bonding of atoms, strengthened by the sharing of electrons, is called

Answer 9

Covalent bonding

Question 10

a definite pattern of some atom bonded covalently with the same atoms.

Answer 10

Crystal

Question 11

a periodic arrangement of crystal

Answer 11

Lattice

Question 12

those whose crystal structure does not have any impurity.

Answer 12

Intrinsic Semiconductors