Group Number
Not Available
Element Family
Alkaline Earth
Actinide
Space Group Name
Fm_ 3m
Pnma
Interesting Facts
- Calcium ranks 5th rank in the list of earth’s abundance Percentage.
- It is found in the compound state.
- Gypsum or calcium sulfate is used as plaster and plaster of paris.
Not Available
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Made by Bombarding Uranium with Neutrons, Ores of metals
Who Discovered
Humphry Davy
Edwin McMillan and Philip H. Abelson
Discovery
In 1808
In 1940
Abundance In Universe
Not Available
Abundance In Sun
~-9999 %
Abundance In Meteorites
Not Available
Abundance In Earth's Crust
Not Available
Abundance In Oceans
Not Available
Abundance In Humans
Not Available
Uses & Benefits
- It is used as a reducing agent while preparing metals like thorium and uranium. It is also used as an alloying agent for metals such as aluminum, copper & lead.
- Calcium carbonate or lime stone is used in cement.
- Currently known uses of Neptunium metal are limited to research purpose only.
-
Neptunium’s isotope neptunium-237 is used as a neutron detectors.
Industrial Uses
Chemical Industry
NA
Medical Uses
Dentistry, Pharmaceutical Industry
NA
Other Uses
Alloys
Alloys, Nuclear Research, Research Purposes
Present in Human Body
Yes
No
Physical State
Solid
Solid
Mohs Hardness
Not Available
Brinell Hardness
Not Available
Speed of Sound
Not Available
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available
Pauling Electronegativity
Sanderson Electronegativity
Not Available
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Not Available
Allen Electronegativity
Not Available
Pauling Electropositivity
5th Energy Level
Not Available
6th Energy Level
Not Available
7th Energy level
Not Available
8th Energy Level
Not Available
9th Energy Level
Not Available
10th Energy Level
Not Available
11th Energy Level
Not Available
12th Energy Level
Not Available
13th Energy Level
Not Available
14th Energy Level
Not Available
15th Energy Level
Not Available
16th Energy Level
Not Available
17th Energy Level
Not Available
18th Energy Level
Not Available
Electrochemical Equivalent
Electron Work Function
Not Available
Other Chemical Properties
Chemical Stability, Flammability, Ionization, Solubility
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Electron Configuration
[Ar] 4s2
[Rn] 5f4 6d1 7s2
Crystal Structure
Face Centered Cubic (FCC)
Orthorhombic (ORTH)
Crystal Lattice
FCC-Crystal-Structure-of-Calcium.jpg#100
ORTH-Crystal-Structure-of-Neptunium.jpg#100
Valence Electron Potential
Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
Lattice C/A Ratio
Not Available
Not Available
Density At Room Temperature
Density When Liquid (at m.p.)
Not Available
Tensile Strength
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure at 1000 K
Not Available
Vapor Pressure at 2000 K
Not Available
Shear Modulus
Not Available
Bulk Modulus
Not Available
Young's Modulus
Not Available
Poisson Ratio
Not Available
Other Mechanical Properties
NA
Ductile
Magnetic Ordering
Diamagnetic
Paramagnetic
Electrical Property
Conductor
Conductor
Electron Affinity
Not Available
Critical Temperature
Not Available
Not Available
Thermal Expansion
Not Available
Enthalpy of Vaporization
Not Available
Enthalpy of Atomization
Not Available
Standard Molar Entropy
Not Available