Calcium is a chemical element with symbol Ca and atomic number 20. Calcium is
a soft gray ... Darmstadtium (unknown chemical properties) · Roentgenium ...
chemical properties, health and environmental effects of calcium.
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Element Calcium (Ca), Group 2, Atomic Number 20, s-block, Mass 40.078.
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Ca. Melting point. 839° C. Boiling point. 1484° C. Density. 1.54 g/cm³.
Appearance. Calcium is dull gray, but it is shiny when scratched. Other physical
Calcium is a metallic element that has the atomic number 20. Some of its most
important chemical properties are that it has 10 isotopes, an atomic mass of
Five physical properties of calcium are: a melting point of 1548 degrees
Fahrenheit, boiling point of 1757 degrees Fahrenheit, color of silver or gray, solid
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Humans have used calcium compounds for hundreds of years in construction, ....
The mixture has properties different from those of the individual metals.