Electric charge is a property of some subatomic particles. Atoms can be neutral (zero electric charge), or they can have a charge. If they have a charge, they are called ions.
Charge
No it is NOT the same: Charge ( + or - ) is a different property from magnetisme (N? or S?)
property of a conductor that opposes the flow of charge passing through it
Electric charge is the property of matter that gives rise to both electricity and magnetism.
Yes. It is.
Charge is a physical property that causes matter to experience a force within an electromagnetic field.
Depends upon where the commercial property is located
A photon has zero electrical charge.
Yes, they can; they're allowed to charge "reasonable" fees for notifying you they have the property and for storing it until you come to get it.
No an electron does not have a net charge of 0, in fact it has a net charge of -1.
Charge