Calcium

Calcium Element Data

Group	2	Melting point	842°C, 1548°F, 1115 K
Period	4	Boiling point	1484°C, 2703°F, 1757 K
Block	s	Density (g cm−3)	1.54
Atomic number	20	Relative atomic mass	40.078
State at 20°C	Solid	Key isotopes	⁴⁰Ca
Electron configuration	[Ar]4s²	CAS number	7440-70-2
ChemSpider ID	4573905	ChemSpider is a free chemical structure database

What is Calcium?

Calcium with atomic number 20 is represented in the periodic table with the symbol Ca.
Calcium (Ca) is a vital element that aids our bones stay tough and capable of supporting our load.
Calcium is also used by our nervous system to help transmit impulses through our bodies.

The element maintains the vital for bones and teeth.
The element assists in the movement of muscles by helping to carry messages from the brain to all parts of the body.
The ions of the element act as carriers between cells in the form of multicellular life forms.
The element aids in assisting hormones to release along with enzymes.
This element is widely used in steelmaking because it tends to readily form compounds with oxygen and sulphur.
Several calcium compounds find use in the food industry (as food additives) and the pharmaceutical industry.

The element is the fifth most abundant metal in the planet’s crust (4.1%).
Important isotopes of calcium include ⁴⁸Ca, ⁴⁶Ca, ⁴⁴Ca, ⁴³Ca, ⁴²Ca, and ⁴⁰Ca.
Traced in large amounts as gypsum (calcium sulfate), limestone (calcium carbonate), apatite (calcium chloro- or fluoro-phosphate) and fluorite (calcium fluoride).
Dissolved calcium bicarbonate is found in hard water.

Since the Greeks and Romans, humans have known about calcium and compounds that contain calcium.
Romans made use of lime in their concrete and termed it “Calx.”
Davy was the original chemist to separate pure calcium in 1808.
Once the element is refined, it would turn tougher as a silver-coloured metal.