In this lesson, you learned about the Bohr model of the atom. The Bohr model below shows a phosphorus (P) atom. Write a paragraph describing how many valence electrons the atom has and why Bohr models are still useful to predict bonding of atoms, even though Bohr models do not correctly show the location of electrons in an atom.

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation: