Why do lithium atoms make great batteries? A. Lithium atoms gain electrons easily and are very small
B. Lithium atoms lose an electron easily and are very small
C. Lithium atoms do not lose electrons easily and are very small
D. Lithium atoms lose protons easily and are very small

explanation: look here

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.