Radium

Iron

Radium Iron Comparison

Radium

Iron

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1 Periodic Table

1.1 Symbol

1.2 Group Number

0 17

1.3 Period Number

2 7

1.4 Block

s block

d block

1.5 Element Family

Alkaline Earth

Transition Metal

1.6 CAS Number

74401447439896

7429905 54386242

1.7 Space Group Name

Im_ 3m

1.8 Space Group Number

229.00229.00

11 229

2 Facts

2.1 Interesting Facts

Radium metal is the heaviest metal of Alkaline earth metals column.
Radium metal is highly radioactive and does not have any stable isotopes.

Iron is not always magnetic in nature, its allotrope are ferromagnetic and the B allotrope is nonmagnetic.
The blood consists Iron in hemoglobin molecules to transfer Oxygen in the body.

2.2 Sources

Mining, Ores of metals

Earth's crust, Found in Minerals

2.3 History

2.3.1 Who Discovered

Not Available

Unknown

2.3.2 Discovery

In 1898

Before 5000 BC

2.4 Abundance

2.4.1 Abundance In Universe

NA1.1 * 10^-1 %

5E-09 0.11

2.4.2 Abundance In Sun

~-9999 %~0.1 %

1E-08 0.1

2.4.3 Abundance In Meteorites

NA22.00 %

1.7E-07 22

2.4.4 Abundance In Earth's Crust

0.00 %6.30 %

9.9E-12 8.1

2.4.5 Abundance In Oceans

0.00 %0.00 %

2E-23 1.1

2.4.6 Abundance In Humans

0.00 %0.01 %

1E-13 1.4

3 Uses

3.1 Uses & Benefits

It is a highly radioactive metal; and sometime Radium-223 is used to treat prostate cancer.
It is used in luminous paints.

Iron metal alloy steel is used in the application of civil engineering and manufacturing.
Alloys of iron with nickel, vanadium, chromium, tungsten and manganese have very useful properties.

3.1.1 Industrial Uses

Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry

3.1.2 Medical Uses

Pharmaceutical Industry

Pharmaceutical Industry, Surgical Instruments Manufacturing

3.1.3 Other Uses

Alloys, Sculptures, Statues

3.2 Biological Properties

3.2.1 Toxicity

Highly Toxic

Non Toxic

3.2.2 Present in Human Body

✔ ✘

3.2.3 In Blood

NA447.00 Blood/mg dm-3

0 1970

3.2.4 In Bone

NA380.00 p.p.m.

0 170000

4 Physical

4.1 Melting Point

700.00 °C1,535.00 °C

27 3410

4.2 Boiling Point

1,737.00 °C2,750.00 °C

147 5660

4.3 Appearance

4.3.1 Physical State

Solid

4.3.2 Color

Silvery White

Gray

4.3.3 Luster

Metallic

4.4 Hardness

4.4.1 Mohs Hardness

NA4.00

0.2 8.5

4.4.2 Brinell Hardness

NA200.00 MPa

0.14 3490

4.4.3 Vickers Hardness

NA608.00 MPa

121 3430

4.5 Speed of Sound

NA5,120.00 m/s

818 16200

4.6 Optical Properties

4.6.1 Refractive Index

NANA

1.000933 1.7229

4.6.2 Reflectivity

NA65.00 %

58 97

4.7 Allotropes

✔ ✘

4.7.1 α Allotropes

Not Available

Ferrite (alpha Iron)

4.7.2 β Allotropes

Not Available

beta Iron

4.7.3 γ Allotropes

Not Available

gamma Iron

5 Chemical

5.1 Chemical Formula

5.2 Isotopes

5.2.1 Known Isotopes

3326

0 38

5.3 Electronegativity

5.3.1 Pauling Electronegativity

0.901.83

0.7 2.54

5.3.2 Sanderson Electronegativity

NA2.20

0.22 2.56

5.3.3 Allred Rochow Electronegativity

0.971.64

0.86 1.82

5.3.4 Mulliken-Jaffe Electronegativity

0.92NA

0.62 2.48

5.3.5 Allen Electronegativity

0.891.80

0.659 2.7

5.4 Electropositivity

5.4.1 Pauling Electropositivity

3.102.17

1.46 3.3

5.5 Ionization Energies

5.5.1 1st Energy Level

509.30 kJ/mol762.50 kJ/mol

375.7 26130

5.5.2 2nd Energy Level

979.00 kJ/mol1,561.90 kJ/mol

710.2162 28750

5.5.3 3rd Energy Level

NA2,957.00 kJ/mol

1600 34230

5.5.4 4th Energy Level

NA5,290.00 kJ/mol

2780 37066

5.5.5 5th Energy Level

NA7,240.00 kJ/mol

4305.2 97510

5.5.6 6th Energy Level

NA9,560.00 kJ/mol

5715.8 105800

5.5.7 7th Energy level

NA12,060.00 kJ/mol

7226.8 114300

5.5.8 8th Energy Level

NA14,580.00 kJ/mol

8857.4 125300

5.5.9 9th Energy Level

NA22,540.00 kJ/mol

14110 134700

5.5.10 10th Energy Level

NA25,290.00 kJ/mol

17100 144300

5.5.11 11th Energy Level

NA28,000.00 kJ/mol

19900 169988

5.5.12 12th Energy Level

NA31,920.00 kJ/mol

22219 189368

5.5.13 13th Energy Level

NA34,830.00 kJ/mol

26930 76015

5.5.14 14th Energy Level

NA37,840.00 kJ/mol

29196 86450

5.5.15 15th Energy Level

NA44,100.00 kJ/mol

41987 97510

5.5.16 16th Energy Level

NA47,206.00 kJ/mol

47206 109480

5.5.17 17th Energy Level

NA122,200.00 kJ/mol

52737 122200

5.5.18 18th Energy Level

NA131,000.00 kJ/mol

58570 134810

5.5.19 19th Energy Level

NA140,500.00 kJ/mol

64702 148700

5.5.20 20th Energy Level

NA152,600.00 kJ/mol

80400 171200

5.5.21 21st Energy Level

NA163,000.00 kJ/mol

87000 179100

5.5.22 22nd Energy Level

NA173,600.00 kJ/mol

93400 184900

5.5.23 23rd Energy Level

NA188,100.00 kJ/mol

98420 198800

5.5.24 24th Energy Level

NA195,200.00 kJ/mol

104400 195200

5.5.25 25th Energy Level

NANA

121900 121900

5.5.26 26th Energy Level

NANA

127700 127700

5.5.27 27th Energy Level

NANA

133800 133800

5.5.28 28th Energy Level

NANA

139800 139800

5.5.29 29th Energy Level

NANA

148100 148100

5.5.30 30th Energy Level

NANA

154500 154500

5.6 Electrochemical Equivalent

4.22 g/amp-hr0.69 g/amp-hr

0.16812 8.3209

5.7 Electron Work Function

NA4.70 eV

2.14 5.65

5.8 Other Chemical Properties

Ionization, Radioactive Isotopes, Radioactivity

Corrosion, Ionization, Solubility

6 Atomic

6.1 Atomic Number

8826

3 117

6.2 Electron Configuration

[Rn] 7s²

[Ar] 3d⁶ 4s²

6.3 Crystal Structure

Body Centered Cubic (BCC)

6.3.1 Crystal Lattice

6.4 Atom

6.4.1 Number of Protons

8826

3 117

6.4.2 Number of Neutrons

13830

4 184

6.4.3 Number of Electrons

8826

3 117

6.5 Radius of an Atom

6.5.1 Atomic Radius

NA126.00 pm

112 265

6.5.2 Covalent Radius

221.00 pm132.00 pm

96 260

6.5.3 Van der Waals Radius

283.00 pm200.00 pm

139 348

6.6 Atomic Weight

226.00 amu55.85 amu

6.94 294

6.7 Atomic Volume

45.20 cm3/mol7.10 cm3/mol

1.39 71.07

6.8 Adjacent Atomic Numbers

6.8.1 Previous Element

6.8.2 Next Element

6.9 Valence Electron Potential

20.10 (-eV)67.00 (-eV)

8 392.42

6.10 Lattice Constant

514.80 pm286.65 pm

228.58 891.25

6.11 Lattice Angles

π/2, π/2, π/2

6.12 Lattice C/A Ratio

NANA

1.567 1.886

7 Mechanical

7.1 Density

7.1.1 Density At Room Temperature

5.50 g/cm³7.87 g/cm³

0.534 40.7

7.1.2 Density When Liquid (at m.p.)

NA6.98 g/cm3

0.512 20

7.2 Tensile Strength

NA11,000.00 MPa

2.5 11000

7.3 Viscosity

NANA

0.001526 0.001526

7.4 Vapor Pressure

7.4.1 Vapor Pressure at 1000 K

NA0.00 (Pa)

2.47E-11 121

7.4.2 Vapor Pressure at 2000 K

NA36.80 (Pa)

2.62E-10 774

7.5 Elasticity properties

7.5.1 Shear Modulus

NA82.00 GPa

1.3 222

7.5.2 Bulk Modulus

NA170.00 GPa

1.6 462

7.5.3 Young's Modulus

NA211.00 GPa

1.7 528

7.6 Poisson Ratio

NA0.29

0.032 0.47

7.7 Other Mechanical Properties

Ductile, Malleable, Weldable

8 Magnetic

8.1 Magnetic Characteristics

8.1.1 Specific Gravity

5.007.20

0.53 4500

8.1.2 Magnetic Ordering

Nonmagnetic

Ferromagnetic

8.1.3 Permeability

NA6.3 * 10^-3 H/m

1.25643E-06 0.0063

8.1.4 Susceptibility

NA2,00,000.00

-0.000166 200000

8.2 Electrical Properties

8.2.1 Electrical Property

Conductor

8.2.2 Resistivity

100.00 nΩ·m96.10 nΩ·m

0.18 961

8.2.3 Electrical Conductivity

NA0.10 10⁶/cm Ω

0.00666 0.63

8.2.4 Electron Affinity

NA15.70 kJ/mol

0 222.8

9 Thermal

9.1 Specific Heat

0.12 J/(kg K)0.44 J/(kg K)

0.11 3.6

9.2 Molar Heat Capacity

NA25.10 J/mol·K

16.443 62.7

9.3 Thermal Conductivity

18.60 W/m·K80.40 W/m·K

6.3 429

9.4 Critical Temperature

NANA

26.3 3223

9.5 Thermal Expansion

NA11.80 µm/(m·K)

4.5 97

9.6 Enthalpy

9.6.1 Enthalpy of Vaporization

NA351.00 kJ/mol

7.32 799.1

9.6.2 Enthalpy of Fusion

NA14.90 kJ/mol

2.1 35.23

9.6.3 Enthalpy of Atomization

163.00 kJ/mol414.20 kJ/mol

61.5 837

9.7 Standard Molar Entropy

71.00 J/mol.K27.30 J/mol.K

9.5 198.1

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