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Test # 219 [05-Feb-2018]


1.
(P) accidents are still bound to happen
(Q) occasionally
(R)though
(S) despite everyone's best efforts

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  • Electricity

    Electrical Charges

    Protons, neutrons and electrons are very different from each other. They have their own properties, or characteristics. One of these properties is called an electrical charge. Protons have what we call a positive + charge. Electrons have a negative charge. Neutrons have no charge, they are neutral.

    The charge of one proton is equal in strength to the charge of one electron. When the number of protons in an atom equals the number of electrons, the atom itself has no overall charge, it is neutral.


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