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WorksheetsClassification of Materials According to Conductivity
Total questions: 15
Worksheet time: 8mins
What is the commonly used semiconductor in the modern electronics?
Germanium
Copper
Silicon
Carbon?
What is the atomic number of a Silicon?
4
14
12
16
The sharing of valence electrons is called ______.
Electron Bonding
Valency
Covalent Bonding
None of the Above
Is sea water a conductor?
Yes
No
Not Sure
When the characteristics of a pure semiconductor are altered through a process known as ______.
Doping
Covalent Bonding
Heating
Lighting
A substance, body or material which has more electrons that are free to move and has 1 valence electrons.
Insulator
Semiconductor
Metals
Conductor
Covalent bond needs minimum of how many electrons?
1
3
8
2
The number of protons, balanced by an equal number of electrons, in an atom.
Valence Number
Neutron Number
Atomic Number
Valence Ring
A device that allows current to pass through it in only one direction.
Resistor
Transistor
Diode
Capacitor
Doping of Semiconductors
Materials which can conduct electricity better than insulator, but not as well as conductors.
The process of adding of a certain amount of specific impurities atoms in the pure semiconductor
When an element has 4 electrons on the outer ring
All of the Above
A semiconductor has generally _____valence electrons.
2
3
5
4
The energy gap is maximum in
Conductor
Insulator
Semiconductor
Superconductor
The nucleus of an atom is made up of
protons and neutrons
electrons
electrons and protons
electrons and neutrons
Valence electrons are
in the closest orbit to the nucleus
in the most distant orbit from the nucleus
in various orbits around the nucleus
not associated with a particular atom
Which of the following is a metal?
sodium (Na)
sulfur (S)
neon (Ne)
chlorine (Cl)
