Electron theory of Electrification

• Nucleus of atom is positively

charged.

• The electron revolving around it is negatively charged.

• They are equal in numbers, hence atom is electrically neutral.

• With friction there is transfer of electrons, hence net charge is developed in the particles.

• It also explains that the charges are compulsorily developed in pairs 

 equally . +vein one body and –ve in second.

• It establish conservation of charges in the universe. 

• The loss of electrons develops +ve charge. 

While excess of electrons develop 

- ve charge

• A proton is 1837 times heavier than electron 

hence it cannot be transferred. Transferring 

lighter electron is easier. 

• Therefore for electrification of matter, only electrons are active and responsible.