Use the band of stability to determine if europium-154 is a stable or unstable nucleus. hint: you must first find the atomic number to determine the number of protons and then use the equation, neutrons = mass number -protons, to find the neutrons a. n/z = 1.44, stable b. n/z = 0.69, stable c. n/z = 0.69, unstable d. n/z = 1.44, unstable answer

3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.