Which of the following metals (M) will form an ionic compound with nitrogen with the general formula M3N2?
O lithium (Li)
Oaluminum (AI)
O sodium (Na)
O beryllium (Be)

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage