QMRP is an acronym for Qualified Mental Retardation Professional. This term was first used in federal standards developed in the late 1970s and early 1980s for intermediate care facilities for the developmentally disabled (ICF/DD).
Physical properties. Calcium is a fairly soft metal with a shiny silver surface when first cut. The surface quickly becomes dull as calcium reacts with oxygen to form a coating of white or gray calcium oxide. Calcium's melting point is 850Â°C (1,560Â°F) and its boiling point is 1,440Â°C (2,620Â°F).
Properties of calcium. Calcium as a metal has a silvery color and is rather hard. It is one of the alkaline earth elements. It readily forms a white coating of nitride in air, reacts with water and burns with a yellow-red flame. Calcium has a large number of both natural and manufactured compounds that are widely used.