what are the theoretical energies required to remove an electron from the n=2 energy level of the following: (a) h, (b) li2 , (c) fe25 (d) u91

The graph indicates the running route for tobias. which best describes his run? from time 0 to 6, he went fast and then slowed down. from time 6 to 10, he was at his slowest. from time 12 to 14, he went very slow. from time 14 to 18, he went toward the starting point.