Atoms
the smallest unit of ordinary matter that forms a chemical element.
What is an Atom?
The set of physical phenomena associated with the presence and motion of matter that has a property of electric charge.
What is electricity?
It is an essential component of most electronic circuits and its solid substance that has a conductivity between that of an insulator and that of most metals
What is a semiconductor?
It is made of one or more protons and a number of neutrons.
What is a nucleus of an atom?
It is generated by the flow of negatively charged electrons, positively charged holes, and positive or negative ions in some cases.
Electrical Current
An imbalance of electric charges within or on the surface of a material.
What is static electricity?
They have a positive electric charge
What are protons?
An object or type of material that allows the flow of charge (electrical current) in one or more directions.
What is a conductor?
A device consisting of one or more electrochemical cells with external connections for powering electrical devices such as flashlights, mobile phones, and electric cars
What is a battery?
They have a negative electric charge
What are electrons?
Symbol χ, measures the tendency of an atom to attract a shared pair of electrons.
What is electronegativity?
The positive and negative terminals of a battery
What are cathodes and anodes?
An outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed.
What are Valence Electrons?
A material in which the electron does not flow freely or the atom of the insulator have tightly bound electrons whose internal electric charges do not flow freely
What is an electrical insulator?
A tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties
What is a periodic table?