Apology First: I very much regret having a nasty, hair-trigger temper and I apologize to anyone rightfully offended by it, and feel I should indeed read questions more thoroughly and also try to research questions better. Weak excuse: I find it very upsetting to care for dying Alzheimers patients and have very little time. It is a requirement of my program to care for the dying. Question: Charge carriers in a metal are electrons rather than protons because electrons are: Smaller Negative Loosely bound All of the above None of the above I know they are smaller (lighter) and also loosely bound. I am not sure the negative fact comes into play, because the book says protons carry a positive charge, and metals do have protons. But since two of them are true, is the likely answer All of the above? This is in the only question out of 84 I can't solve for this chapter. Thank you.