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Calcium
Calcium




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Ca Element

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1 Periodic Table

1.1 Symbol

Ca

1.2 Group Number

2
Rank: 16 (Overall)
Gadolinium Metal
0 17

1.3 Period Number

4
Rank: 4 (Overall)
Lithium Metal
2 7

1.4 Block

s block

1.5 Element Family

Alkaline Earth

1.6 CAS Number

7440702
Rank: 21 (Overall)
Aluminium Metal
7429905 54386242

1.7 Space Group Name

Fm_ 3m

1.8 Space Group Number

225.00
Rank: 2 (Overall)
Plutonium Metal
11 229

2 Facts

2.1 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.

2.2 Sources

Earth's crust, Found in Minerals, Mining, Ores of Minerals

2.3 History

2.3.1 Who Discovered

Humphry Davy

2.3.2 Discovery

In 1808

2.4 Abundance

2.4.1 Abundance In Universe

7 * 10-3 %
Rank: 3 (Overall)
Thallium Metal
5E-09 0.11

2.4.2 Abundance In Sun

~0.007 %
Rank: 4 (Overall)
Beryllium Metal
1E-08 0.1

2.4.3 Abundance In Meteorites

1.10 %
Rank: 4 (Overall)
Gold Metal
1.7E-07 22

2.4.4 Abundance In Earth's Crust

5.00 %
Rank: 3 (Overall)
Radium Metal
9.9E-12 8.1

2.4.5 Abundance In Oceans

0.00 %
Rank: 5 (Overall)
Protactinium Metal
2E-23 1.1

2.4.6 Abundance In Humans

1.40 %
Rank: 1 (Overall)
Radium Metal
1E-13 1.4

3 Uses

3.1 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.

3.1.1 Industrial Uses

Chemical Industry

3.1.2 Medical Uses

Dentistry, Pharmaceutical Industry

3.1.3 Other Uses

Alloys

3.2 Biological Properties

3.2.1 Toxicity

Non Toxic

3.2.2 Present in Human Body

83% - Alkaline Earth Metals Metals have it !

3.2.3 In Blood

60.50 Blood/mg dm-3
Rank: 4 (Overall)
Plutonium Metal
0 1970

3.2.4 In Bone

170,000.00 p.p.m.
Rank: 1 (Overall)
Plutonium Metal
0 170000

4 Physical

4.1 Melting Point

839.00 °C
Rank: 52 (Overall)
Francium Metal
27 3410

4.2 Boiling Point

1,484.00 °C
Rank: 58 (Overall)
Flerovium Metal
147 5660

4.3 Appearance

4.3.1 Physical State

Solid

4.3.2 Color

Gray

4.3.3 Luster

NA

4.4 Hardness

4.4.1 Mohs Hardness

1.75
Rank: 17 (Overall)
Cesium Metal
0.2 8.5

4.4.2 Brinell Hardness

170.00 MPa
Rank: 44 (Overall)
Cesium Metal
0.14 3490

4.4.3 Vickers Hardness

Not Available
Rank: N/A (Overall)
Palladium Metal
121 3430

4.5 Speed of Sound

3,810.00 m/s
Rank: 19 (Overall)
Thallium Metal
818 16200

4.6 Optical Properties

4.6.1 Refractive Index

Not Available
Rank: N/A (Overall)
Mercury Metal
1.000933 1.7229

4.6.2 Reflectivity

Not Available
Rank: N/A (Overall)
Molybdenum Metal
58 97

4.7 Allotropes

No - Alkaline Earth Metals Metals has it !

4.7.1 α Allotropes

Not Available

4.7.2 β Allotropes

Not Available

4.7.3 γ Allotropes

Not Available

5 Chemical

5.1 Chemical Formula

Ca

5.2 Isotopes

5.2.1 Known Isotopes

19
Rank: 20 (Overall)
Tennessine Metal
0 38

5.3 Electronegativity

5.3.1 Pauling Electronegativity

1.00
Rank: 45 (Overall)
Francium Metal
0.7 2.54

5.3.2 Sanderson Electronegativity

0.95
Rank: 24 (Overall)
Cesium Metal
0.22 2.56

5.3.3 Allred Rochow Electronegativity

1.04
Rank: 34 (Overall)
Cesium Metal
0.86 1.82

5.3.4 Mulliken-Jaffe Electronegativity

1.08
Rank: 17 (Overall)
Cesium Metal
0.62 2.48

5.3.5 Allen Electronegativity

1.03
Rank: 39 (Overall)
Cesium Metal
0.659 2.7

5.4 Electropositivity

5.4.1 Pauling Electropositivity

3.00
Rank: 9 (Overall)
Gold Metal
1.46 3.3

5.5 Ionization Energies

5.5.1 1st Energy Level

589.80 kJ/mol
Rank: 57 (Overall)
Cesium Metal
375.7 26130

5.5.2 2nd Energy Level

1,145.40 kJ/mol
Rank: 69 (Overall)
Ruthenium Metal
710.2162 28750

5.5.3 3rd Energy Level

4,912.40 kJ/mol
Rank: 7 (Overall)
Osmium Metal
1600 34230

5.5.4 4th Energy Level

6,491.00 kJ/mol
Rank: 7 (Overall)
Thorium Metal
2780 37066

5.5.5 5th Energy Level

8,153.00 kJ/mol
Rank: 7 (Overall)
Dubnium Metal
4305.2 97510

5.5.6 6th Energy Level

10,496.00 kJ/mol
Rank: 8 (Overall)
Seaborgium Metal
5715.8 105800

5.5.7 7th Energy level

12,270.00 kJ/mol
Rank: 12 (Overall)
Bohrium Metal
7226.8 114300

5.5.8 8th Energy Level

14,206.00 kJ/mol
Rank: 15 (Overall)
Hassium Metal
8857.4 125300

5.5.9 9th Energy Level

18,191.00 kJ/mol
Rank: 12 (Overall)
Yttrium Metal
14110 134700

5.5.10 10th Energy Level

20,385.00 kJ/mol
Rank: 16 (Overall)
Strontium Metal
17100 144300

5.5.11 11th Energy Level

57,110.00 kJ/mol
Rank: 3 (Overall)
Yttrium Metal
19900 169988

5.5.12 12th Energy Level

63,410.00 kJ/mol
Rank: 3 (Overall)
Molybdenum Metal
22219 189368

5.5.13 13th Energy Level

70,110.00 kJ/mol
Rank: 3 (Overall)
Molybdenum Metal
26930 76015

5.5.14 14th Energy Level

78,890.00 kJ/mol
Rank: 4 (Overall)
Molybdenum Metal
29196 86450

5.5.15 15th Energy Level

86,310.00 kJ/mol
Rank: 5 (Overall)
Manganese Metal
41987 97510

5.5.16 16th Energy Level

94,000.00 kJ/mol
Rank: 6 (Overall)
Iron Metal
47206 109480

5.5.17 17th Energy Level

104,900.00 kJ/mol
Rank: 7 (Overall)
Cobalt Metal
52737 122200

5.5.18 18th Energy Level

111,711.00 kJ/mol
Rank: 8 (Overall)
Nickel Metal
58570 134810

5.5.19 19th Energy Level

Not Available
Rank: 100 (Overall)
Copper Metal
64702 148700

5.5.20 20th Energy Level

Not Available
Rank: 100 (Overall)
Molybdenum Metal
80400 171200

5.5.21 21st Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum Metal
87000 179100

5.5.22 22nd Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum Metal
93400 184900

5.5.23 23rd Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum Metal
98420 198800

5.5.24 24th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum Metal
104400 195200

5.5.25 25th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum Metal
121900 121900

5.5.26 26th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum Metal
127700 127700

5.5.27 27th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum Metal
133800 133800

5.5.28 28th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum Metal
139800 139800

5.5.29 29th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum Metal
148100 148100

5.5.30 30th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum Metal
154500 154500

5.6 Electrochemical Equivalent

0.75 g/amp-hr
Rank: 64 (Overall)
Beryllium Metal
0.16812 8.3209

5.7 Electron Work Function

2.87 eV
Rank: 38 (Overall)
Cesium Metal
2.14 5.65

5.8 Other Chemical Properties

Chemical Stability, Flammability, Ionization, Solubility

6 Atomic

6.1 Atomic Number

20
Rank: 86 (Overall)
Lithium Metal
3 117

6.2 Electron Configuration

[Ar] 4s2

6.3 Crystal Structure

Face Centered Cubic (FCC)

6.3.1 Crystal Lattice

6.4 Atom

6.4.1 Number of Protons

20
Rank: 85 (Overall)
Lithium Metal
3 117

6.4.2 Number of Neutrons

20
Rank: 64 (Overall)
Lithium Metal
4 184

6.4.3 Number of Electrons

20
Rank: 85 (Overall)
Lithium Metal
3 117

6.5 Radius of an Atom

6.5.1 Atomic Radius

197.00 pm
Rank: 6 (Overall)
Beryllium Metal
112 265

6.5.2 Covalent Radius

176.00 pm
Rank: 22 (Overall)
Beryllium Metal
96 260

6.5.3 Van der Waals Radius

231.00 pm
Rank: 19 (Overall)
Zinc Metal
139 348

6.6 Atomic Weight

40.08 amu
Rank: 80 (Overall)
Lithium Metal
6.94 294

6.7 Atomic Volume

29.90 cm3/mol
Rank: 7 (Overall)
Manganese Metal
1.39 71.07

6.8 Adjacent Atomic Numbers

6.8.1 Previous Element

6.8.2 Next Element

6.9 Valence Electron Potential

29.00 (-eV)
Rank: 53 (Overall)
Francium Metal
8 392.42

6.10 Lattice Constant

558.84 pm
Rank: 9 (Overall)
Beryllium Metal
228.58 891.25

6.11 Lattice Angles

π/2, π/2, π/2

6.12 Lattice C/A Ratio

Not Available
Rank: N/A (Overall)
Beryllium Metal
1.567 1.886

7 Mechanical

7.1 Density

7.1.1 Density At Room Temperature

1.55 g/cm3
Rank: 80 (Overall)
Lithium Metal
0.534 40.7

7.1.2 Density When Liquid (at m.p.)

1.38 g/cm3
Rank: 57 (Overall)
Lithium Metal
0.512 20

7.2 Tensile Strength

Not Available
Rank: N/A (Overall)
Indium Metal
2.5 11000

7.3 Viscosity

Not Available
Rank: N/A (Overall)
Mercury Metal
0.001526 0.001526

7.4 Vapor Pressure

7.4.1 Vapor Pressure at 1000 K

25.50 (Pa)
Rank: 3 (Overall)
Cerium Metal
2.47E-11 121

7.4.2 Vapor Pressure at 2000 K

Not Available
Rank: N/A (Overall)
Tungsten Metal
2.62E-10 774

7.5 Elasticity properties

7.5.1 Shear Modulus

7.40 GPa
Rank: 45 (Overall)
Potassium Metal
1.3 222

7.5.2 Bulk Modulus

17.00 GPa
Rank: 43 (Overall)
Cesium Metal
1.6 462

7.5.3 Young's Modulus

20.00 GPa
Rank: 46 (Overall)
Cesium Metal
1.7 528

7.6 Poisson Ratio

0.31
Rank: 13 (Overall)
Beryllium Metal
0.032 0.47

7.7 Other Mechanical Properties

NA

8 Magnetic

8.1 Magnetic Characteristics

8.1.1 Specific Gravity

4.58
Rank: 57 (Overall)
Lithium Metal
0.53 4500

8.1.2 Magnetic Ordering

Diamagnetic

8.1.3 Permeability

Not Available
Rank: N/A (Overall)
Bismuth Metal
1.25643E-06 0.0063

8.1.4 Susceptibility

Not Available
Rank: N/A (Overall)
Bismuth Metal
-0.000166 200000

8.2 Electrical Properties

8.2.1 Electrical Property

Conductor

8.2.2 Resistivity

33.60 nΩ·m
Rank: 48 (Overall)
Thallium Metal
0.18 961

8.2.3 Electrical Conductivity

0.30 106/cm Ω
Rank: 6 (Overall)
Plutonium Metal
0.00666 0.63

8.2.4 Electron Affinity

2.37 kJ/mol
Rank: 39 (Overall)
Mercury Metal
0 222.8

9 Thermal

9.1 Specific Heat

0.63 J/(kg K)
Rank: 7 (Overall)
Americium Metal
0.11 3.6

9.2 Molar Heat Capacity

25.93 J/mol·K
Rank: 34 (Overall)
Beryllium Metal
16.443 62.7

9.3 Thermal Conductivity

201.00 W/m·K
Rank: 5 (Overall)
Neptunium Metal
6.3 429

9.4 Critical Temperature

Not Available
Rank: N/A (Overall)
Ytterbium Metal
26.3 3223

9.5 Thermal Expansion

22.30 µm/(m·K)
Rank: 19 (Overall)
Tungsten Metal
4.5 97

9.6 Enthalpy

9.6.1 Enthalpy of Vaporization

150.00 kJ/mol
Rank: 47 (Overall)
Zinc Metal
7.32 799.1

9.6.2 Enthalpy of Fusion

8.54 kJ/mol
Rank: 41 (Overall)
Cesium Metal
2.1 35.23

9.6.3 Enthalpy of Atomization

184.00 kJ/mol
Rank: 46 (Overall)
Mercury Metal
61.5 837

9.7 Standard Molar Entropy

41.60 J/mol.K
Rank: 36 (Overall)
Beryllium Metal
9.5 198.1