Which best describes what happens when light traveling through air enters water at an angle? Group of answer choices It moves along straight lines in air and changes direction when it enters water. It moves in a curve in air and moves in straight lines when it enters water. It moves along straight lines in air and continues along the same lines when it enters water. It moves in a curve in air and continues moving in the same curve when it enters water.

2b2t

explanation:

2b2t

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.