If three different cars are left in the sun on a hot day. One of the cars is white, one is silver, and the third is black. All three cars reach a temperature of 120 degrees. The sun sets and the cars begin to cool. Which car will cool the fastest

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.