Normally, an atom has an equal number of protons and electrons. So the positive charge (protons) and the negative charge (electrons) evens out. But electrons on the outer edges of an atom can be more loosely attached, so they can be transferred to another atom. When this happens, and an electron is lost, or transferred, to another atom, the original atom has a net charge.

What statements accurately describe atoms

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.