Define saturated and unsaturated fats ​

saturated fatty acid lack double bonds between the individual carbon atoms, while in unsaturated fatty acids there is atleast one double bond in the fatty acid chain. Saturated ftas tend to be solid at room temperature and from animal sources, while unsaturated fats are usually liquid and from plant sources.

Saturated fat: A fat that contains only saturated fatty acids, is solid at room temperature, and comes chiefly from animal food products. Some examples of saturated fat are butter, lard, meat fat, solid shortening, palm oil, and coconut oil. Saturated fat tends to raise the level of cholesterol in the blood.

Unsaturated fat: A fat that is liquid at room temperature and comes from a plant, such as olive, peanut, corn, cottonseed, sunflower, safflower, or soybean oil. Unsaturated fat tends not to raise the level of LDL ('bad') cholesterol in the blood.

it is the most commonly accepted one

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.