Which of these is most responsible for chemical reactions? f Electrons traveling the fastest toward the center of the atoms
g Electrons in the highest occupied energy level of the atoms
h Electrons in the nucleus of the atoms
j Electrons closest to the nucleus of the atom

Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.