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).
One of the chemical properties of calcium is that it reacts with a lot of other substances. As a result, pure calcium is never found in nature; it reacts too easily with other elements and with water. Calcium belongs to the alkaline-earth metal elements on the periodic table, which all react with water.