Ca	Z =  20	◊ ◊ ◊ ◊ ◊	Calcium
			From the Greek "calx", meaning "limestone"
(AM) Atomic Mass	40.078  amu	♦	Oxidation States	+2
(BP) Boiling Point	1464  °C	♦	(MP) Melting Point	839  °C
(ρ) Density	1.55  g/cm3	♦	Crystal Structure	Face Centered Cubic
( χ ) Electronegativity	1	♦	(AR) Atomic Radius	1.74  Å
Physical State	Solid	♦	(C) Heat Capacity	0.647  J/g °C
Electronic-Config	[Ar]  4s2	♦	(I1) First Ionization E	589.81  kJ/mol
(ΔHvap) Heat of Vaporization	154.7  kJ/mol	♦	(ΔHfus) Heat of Fusion	8.54  kJ/mol
Year of Discovery	1879	♦	Location of Discovery	England
(E°) Standard Potential	Ca+⇔ Ca (-3.800 V),   Ca2+⇔ Ca (-2.868 V)
Stable isotopes	40Ca,  42Ca,  43Ca,  44Ca,  46Ca
Discovered/Synthesized by	Sir Humphry Davy
Natural Source	The mineral/ore calcite, dolomite, gypsum, plagioclases, amphiboles, pyroxenes and garnets
Common Uses	Chalk, gypsum, plaster, mortar, cement, antacids
Other Info	Makes up 50 percent of bone mass as well as dental enamel Earth’s largest carbon reservoir in the form of calcium carbonate
Previous Element				Next Element
Back to Table				Common Properties
Home Page				Definitions