2. Consider the carbon atom (ground state configuration 1s22s22p2) and oxygen atom (groundstate configuration 1s22s22p4).(a) Write out the electron configuration (microstate) corresponding to the lowest energyconfiguration of carbon and oxygen. What areLandSin each case?(b) What values ofJare possible with the values ofLandSthat you found for carbon andoxygen in part (a)? Use Hund’s third rule to determine the complete term symbols forthe ground states of carbon and oxygen.

Which statement correctly describes potassium iodide, ki? there is a one-to-one ratio of potassium ions to iodide ions. potassium gains electrons and iodine loses electrons during the reaction. the lattice is held together by potassium anions and iodide cations.

Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.