Electric Charge

Electric Charge

1. Types of charge

   • positive
   • negative

2. atom and subatomic particle

   • atom: An atom is the smallest particle into which an element can be divided without losing its chemical identity. Atoms consist of a heavy central nucleus surrounded by a cloud of negatively charged particles called electrons.
   • subatomic particle: any of various self-contained units of matter or energy that are the fundamental constituents of all matter.

3. Coulomb’s Law

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