Consider the reaction: Fe2O3 + 3CO → 3CO2 + 2Fe 0.200 mol of Fe2O3 and 0.500 mol of CO are placed in a container and this reaction occurs,
resulting in the formation of 0.250 mol of Fe.
What is the percent yield of the reaction?

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom