True or false: 1. Positively charged radioactive rays are called beta rays. 2. Rutherford succeeded in disintegrating the nitrogen nuclei. 3. Atoms gain or lose electrons depending on whichever is the easiest to achieve the electron structure of the nearest inert gas. 4. The periodic table can be separated into 5 groups.

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?