Calcium is a chemical element with symbol Ca and atomic number 20. Calcium is
a soft gray ... processes. As a major material used in mineralization of bone, teeth
and shells, calcium is the most abu...
Calcium plays a vital role within the body and has numerous essential functions.
Calcium and bones. Bone is formed from a complex matrix of proteins within ...
Due to its high reactivity with common materials, there is very little demand for
metallic calcium. It is used in some chemical processes to refine thorium, uranium
May 22, 2014 ... Calcium is the most abundant mineral in the human body, making up about ...
Calcium may be used as a reducing agent in the process of metal ...
Calcium is used for many other conditions. It's an ingredient in many antacids.
Doctors also use calcium to control high levels of magnesium, phosphorus, and ...
Kids learn about the element calcium and its chemistry including atomic ... form
has few industrial uses, but its compounds with other elements are widely used.
People have used calcium's compounds for thousands of years – in cement, for
example. Limestone [calcium carbonate] was called calx by the Romans.
Calcium is a chemical element with the symbol Ca and an atomic number of 20.
... Calcium compounds are used in the making of cement, glass, lime, bricks, ...
Oct 21, 2013 ... Calcium is an important mineral for your body. It primarily takes three forms in the
body. First, it is part of the molecular composition of bone, ...
Atomic number. 20. Atomic mass. 40.08 g.mol <sup>-1</sup>. Electronegativity according to
Pauling. 1.0. Mass volume. 1.6 g.cm<sup>-3</sup> at 20°C. Melting point. 840 °C.