View source for AP Physics C/Electric Charge

=Fundamentals of Electric Charge=
* Intrinsic to fundamental particles
* 2 types: positive (+), negative (-)
Positive - Lack of electrons
Negative - More electrons
No charge = Neutral

Same charges repel: + and + or - and -
Opposite charges attract: + and -

* Coulomb: Measurement of the amount of electric charge (similar to moles in chemistry)

{| class="wikitable"
|-
! Atomic Particle !! Mass !! Charge
|-
| Neutron || 1.675 * 10<sup>−27</sup> kg || 0 C
|-
| Proton || 1.673 * 10<sup>−27</sup> kg || 1.602 * 10<sup>−19</sup> C
|-
| Electron || 9.11 * 10<sup>−31</sup> kg || -1.602 * 10<sup>−19</sup> C
|}

=Atomic Notation=

<math chem>^A_ZE</math>

* A = Atomic mass = # protons + # neutrons
* Z = Atomic Number =  # protons
* E = element symbol (like U for Uranium)

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