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).
We've all heard that calcium is one of the most important nutritional building blocks in our body: The mineral (the most abundant of all in the human body) helps to maintain strong, healthy bones and teeth, and also aids in vascular contraction and muscle function, among other essential functions, according to the NIH.