Why are electrons affected by the addition of heat, light, or electricity but protons and neutrons are not? Explain changes that occur when the following substances are separated heated in oven crucible: a. copper metal b. copper nitrate Why do elements f...
Choose one of the following elements (C, H, O, N), and answer questions 1-6 on it: - Atomic Number - Mass Number - Number of electrons in the outer shell - Number of protons - Number of electrons - Number of neutrons What two ...
The valence electron of sodium could have what set of four quantum numbers? What is the number of electrons in the outermost energy level of an oxygen atom? An atom has 20 electrons and 20 neutrons. What is the mass of this atom? What will an atom do if it has 1 to 3 ...