I think you should rephrase your question. there's no example of an electron, an electron is an electron.
the description of an electron is something like:
an electron is the smallest unit of matter that has a negative charge. this charge is 1.602 x 10-19 C. it can be found in the electron cloud surrounding the nucleus of an atom. electric current is the directional movement of electrons in a conductive metal.
Hi
For example aluminium.
For example when the electron absorb energy.
The period number is the same as the energy level containing the valence electrons. For example, in period 4, the valence electrons are the 4s and 4p electrons.
Not necessarily, the number of protons in an atom are exactly the same as the electrons in an atom. For example, sodium has 11 protons and 12 neutrons. How many electrons does it have? 11.
An example is magnesium.
For example metals loss electrons and nonmetals gain electrons.
No electrons or protons, which you can't have...
polarity
not possible
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The flow of electrons or the existence of a static charge.
The place were the electrons are found
For example aluminium.
For example when the electron absorb energy.
They stop the flow of electrons
The period number is the same as the energy level containing the valence electrons. For example, in period 4, the valence electrons are the 4s and 4p electrons.
Atoms which form covalent bonds do share electrons. An example would be the atoms in a water molecule. Yes, the electrons are really shared.