You don’t really need to do everything just explain what i have to do !

Alright! Your being asked to rank a group by there taxonomy. You can remember this for a test by using "Dear King Phillip Came Over for Good Soup" or domain, kingdom, phylum, class, order, family, genus, species. So rank them from least to most specific. See you if you can figure it out with that!

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.