... in yourhand are positive or negative, or both?Section 1.2 Charge, electricity and magnetism 19Book 4 in the Light and Matter series of free introductory physics textbookswww.lightandmatter.com1.3 ... Contents1 Electricity and the Atom1.1 The quest for the atomic force . . . 141.2 Charge, electricity and magnetism . 15Charge, 15.—Conservation of charge,17.—Electrical ... when his three elements (later named gallium, sc andium and germanium) were discovered and found to have very nearly the24 Chapter 1 Electricity and the Atomproperties he had predicted.One thing...