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NCTI Installer Technician CH. 1 Questions with 100% Correct Answers | Updated & Verified
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NCTI Installer Technician CH. 1Questions with 100% Correct Answers |
Updated & Verified
Why do only the outer electrons leave their orbit shells? - Correct Answer-because
electrons farthest from the nucleus are more easily freed from their orbits due to a
weaker electrostatic force.
What is required to have a balanced (or stable) atom? - Correct Answer-electrons must
equal the number of protons
List the capacity of each of the first four orbital shells of an atom. - Correct Answer-
2,8,18,32
What is the maximum electron capacity of a valence shell? - Correct Answer-maximum
of eight electrons
Electrons in orbits nearest the nucleus contain _________ energy than those in more
distant orbits. - Correct Answer-Less
What will happen to a valence electron that has enough energy added to it? - Correct
Answer-valence electron that has enough energy added to it will move away from its
atom.
What major factor determines which category a particular element belongs? - Correct
Answer-The number of electrons in the valence shell
How many valence electrons are there in a good conductor? - Correct Answer-only one
or two valence electrons
List gold, silver, and copper in the order of best conductivity - Correct Answer-
Silver,Copper,Gold
How many valence electrons are in a semiconductor? - Correct Answer-4
Name the two types of electron current flow. - Correct Answer-Random drift and
directed flow are the two types of electron current flow.
What causes electrons to be knocked loose and travel randomly from one atom to
another? - Correct Answer-The movement of atoms in materials that are conductors
and the agitation as they collide
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