Elements in the periodic table that have three shells that are not filled with electrons. The shells are usually the outer three shells. Uranium and holmium are examples of inner transition elements. [..]

This is a solution for which the scientist knows the concentration of solute and solvent. More Information: Solutions

A vitreous solid has no specific organization of molecules. Steel is an example of a vitreous solid. Because of its combination of atoms, it does not have a specific melting point. It may become a liq [..]

The absolute density is a measure of the mass of one milliliter of gas at standard temperature and pressure. More Information: Gases

An acicular habit describes the shape of a large crystal that looks like spikes coming out from one point. Think about those koosh balls for this example. More Information: Solids

The actinide series is one of two series of inner transition elements. Elements 89 through 103 are a part of this series. The elements include uranium, berkelium, and nobelium. More Information: Actin [..]

Symbol:"Ac" Atomic Number:"89" Atomic Mass: 227.03amu. It is one of the elements in the actinide series of inner transition elements. It may also be classified as a [..]

When reactions proceed, a certain amount of energy is needed for the whole process to begin. The energy needed to get the reaction started (get it over the hump) is called the activation energy. The e [..]

Adhesion is one type of attraction force between the molecules of a substance and the container or another object. You stay wet when you get out of the bathtub because of adhesive forces. Some of the [..]

Alchemy is an ancient, non-scientific form of chemistry. In the middle ages, alchemists were people who tried to turn one element into another (usually lead (Pb) into gold (Au)). More Information: Che [..]