In which group does each element have a total of four electrons in the outermost principal energy level

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) 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. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

How have the greenhouse gasses increased from the year 2000 to 2018

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.