A Model for the Electrical Nature of Matter

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Presentation transcript:

A Model for the Electrical Nature of Matter

Matter All matter is made up of ______________ ________ called atoms.

Nucleus At the centre of each atom is a nucleus. Each nucleus has A proton: __________ charge A neutron: ____ charge

Atom

This is not the proton you are looking for. Protons Protons ___ _____ move from a nucleus when an atom becomes charged! This is not the proton you are looking for.

Electrons A cloud of negatively charged electrons surround the nucleus. An electron has the same amount of charge as a proton, but the charge is __________. Electrons _______ from atom to atom when atoms become charged!

Charges Like charges ______ each other; unlike charges attract each other. In some elements electrons move _______ from atom to atom. In other elements the electrons do not want to _______ much at all.

In a neutral atom the number of electrons _____ the number of protons. If an atom ______ an electron, the net charge will be negative, it is called a negative ion. If an atom ______ an electron, the net charge will be positive, it is called a positive ion.