The element radium is found in period 7 and group 2 of the periodic table of the elements, and it has an atomic number of 88. how many s orbitals are used in an atom of radium?
44
88
7
2

Magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. trial 1: trial 2: data mass of empty crucible with lid trial 1: 26.688 trial 2: 26.681 mass of mg metal, crucible, and lid trial 1: 26.994 trial: 2 26.985 mass of mgo, crucible, and lid trial 1: 27.188 trial 2: 27.180