What did the experiments of scientists after john dalton reveal about his atomic theory?

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?

Draw metallic bonding if two copper

Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?