Lithium metal reacts with nitrogen gas to produce lithium nitride. What volume of nitrogen gas at 2 atm and 175â—¦c is required to produce 75.0 g of lithium nitride?

There are main groups in the modern periodic table of elements

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp