Answer
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Step 1::
The symbol for an electron is $e^-$ or sometimes just $e$.
An electron is a fundamental particle that orbits the nucleus of an atom. It carries a negative electrical charge.
Step 2::
Examples of electrons include any negatively charged particles that are found in atoms. They are key components in the formation of chemical bonds and are involved in various physical phenomena such as electricity and magnetism.
Step 3::
A specific example of an electron can be found in a hydrogen atom, which consists of one proton and one electron. The electron orbits the proton in the nucleus.
Step 4::
Non-examples of electrons would be any other subatomic particles that do not have a negative charge. For instance, protons, which are found in the nucleus of an atom, have a positive charge and are therefore not electrons. Similarly, neutrons, which are also found in the nucleus, are neutral particles and are thus not electrons.
Final Answer
Examples of electrons include any negatively charged particles that are found in atoms, while non-examples would be any other subatomic particles that do not have a negative charge.
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