Determine which atom is being described here:shiny, has the properties of both metals and nonmetals, and has three valance electrons this is for scinece but it did not have that in the thing below and im in middle school

A2-kg bowling ball is 1 meter off the ground on a post when it falls. just before it reaches the ground, its traveling 4.4 m/s. assuming that there is no air resistant, which statement is true a. the initial potential energy is less then the final kinetic energy b. the mechanical energy is not conserved c. the mechanical energy is conserved d. the initial potential energy is greater than the final kinetic energy