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Static Electricity.

Atoms have a Centra Nucleus with Electrons Moving Round It.

Tiny nucleus but males up most of the mass of atom. Contains + charged protons and neutral neutrons. Overaal +tively charged.

Rest of atom mostly empty. -tively electrons move around outside but have no mass.

Proton- mass is 1. Charge is +1.

Neutron- mass is 1.Charge is 0. 

Electron- mass is 1/2000. Charge is -1.

Build-up of Static caused by friction.

when two insulting materials are rubbed 2gether, electons will be scraped offand dumped of other. Will leave a + charged and -charged.Only electrons can move, not protons.Which way the two electrons transferred depends on two materials involved.

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