Notes
AP Chem- Structure of Matter
Content of the notes (3)
Page 1
Elementary Particles of Matter: Three main parts make up the basic structure of the atom
Neutrons: Exist in the nucleus, have a relative mass of 1 amu, has no charge
Protons: Exist in the nucleus, have a relative mass of 1 amu, has a + charge
Electrons: Exist in the electron shells surrounding the nucleus, has a relative mass of 0 amu, has a - charge
Page 2
Coulomb's Law: Forces between charged particles is know as the electrostatic force. Particles with similar charges repel, while particles with opposite charges attract to each other. These forces can be mathematically found using Coulomb's Law.
F=(k*q1q2)/r^2, where k is Coulomb's constant, q is the magnitude of the charge, and r is the radies between the particles
Inversely proportional to the radius squared and proportional to the magnitude of the charge