Bohrium

Tantalum

Bohrium vs Tantalum

Bohrium

Tantalum

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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

d block

1.5 Element Family

Transition Metal

1.6 CAS Number

540371487440257

7429905 54386242

1.7 Space Group Name

Not Available

Im_ 3m

1.8 Space Group Number

NA229.00

11 229

2 Facts

2.1 Interesting Facts

Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).

Tantalum metal is known as corrosion resistance.
Tantalum metal can easily fabricated and It is a good conductor of heat and electricity.

2.2 Sources

Found in Minerals, Mining, Synthetically Produced

Found in Minerals, Mining, Ores of Minerals

2.3 History

2.3.1 Who Discovered

Gesellschaft für Schwerionenforschung

Anders Gustaf Ekeberg

2.3.2 Discovery

In 1981

In 1802

2.4 Abundance

2.4.1 Abundance In Universe

NA8 * 10^-9 %

5E-09 0.11

2.4.2 Abundance In Sun

~-9999 %~-9999 %

1E-08 0.1

2.4.3 Abundance In Meteorites

NA0.00 %

1.7E-07 22

2.4.4 Abundance In Earth's Crust

NA0.00 %

9.9E-12 8.1

2.4.5 Abundance In Oceans

NA0.00 %

2E-23 1.1

2.4.6 Abundance In Humans

NANA

1E-13 1.4

3 Uses

3.1 Uses & Benefits

Currently known uses of Bohrium metal are limited to research purpose only.

Tantalum metal is mainly used in the manufacturing of electron components. Its Oxide layer acts as an insulator.
Tantalum metal is also used in surgical transplant like replacement of bone, skull plates and as a woven gauze.

3.1.1 Industrial Uses

Electrical Industry, Electronic Industry

3.1.2 Medical Uses

3.1.3 Other Uses

Research Purposes

Alloys

3.2 Biological Properties

3.2.1 Toxicity

Unknown

Low Toxic

3.2.2 Present in Human Body

✔ ✘

3.2.3 In Blood

0.00 Blood/mg dm-3NA

0 1970

3.2.4 In Bone

0.00 p.p.m.0.03 p.p.m.

0 170000

4 Physical

4.1 Melting Point

NA2,996.00 °C

27 3410

4.2 Boiling Point

NA5,425.00 °C

147 5660

4.3 Appearance

4.3.1 Physical State

Solid

4.3.2 Color

Unknown

Gray Blue

4.3.3 Luster

Unknown Luster

Metallic

4.4 Hardness

4.4.1 Mohs Hardness

NA6.50

0.2 8.5

4.4.2 Brinell Hardness

NA440.00 MPa

0.14 3490

4.4.3 Vickers Hardness

NA870.00 MPa

121 3430

4.5 Speed of Sound

NA3,400.00 m/s

818 16200

4.6 Optical Properties

4.6.1 Refractive Index

NANA

1.000933 1.7229

4.6.2 Reflectivity

NA78.00 %

58 97

4.7 Allotropes

✔ ✘

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

5.2 Isotopes

5.2.1 Known Isotopes

531

0 38

5.3 Electronegativity

5.3.1 Pauling Electronegativity

NA1.50

0.7 2.54

5.3.2 Sanderson Electronegativity

NANA

0.22 2.56

5.3.3 Allred Rochow Electronegativity

NA1.33

0.86 1.82

5.3.4 Mulliken-Jaffe Electronegativity

NANA

0.62 2.48

5.3.5 Allen Electronegativity

NA1.34

0.659 2.7

5.4 Electropositivity

5.4.1 Pauling Electropositivity

NA2.50

1.46 3.3

5.5 Ionization Energies

5.5.1 1st Energy Level

742.90 kJ/mol761.00 kJ/mol

375.7 26130

5.5.2 2nd Energy Level

1,688.50 kJ/mol1,500.00 kJ/mol

710.2162 28750

5.5.3 3rd Energy Level

2,566.50 kJ/molNA

1600 34230

5.5.4 4th Energy Level

3,598.90 kJ/molNA

2780 37066

5.5.5 5th Energy Level

4,727.80 kJ/molNA

4305.2 97510

5.5.6 6th Energy Level

5,991.70 kJ/molNA

5715.8 105800

5.5.7 7th Energy level

7,226.80 kJ/molNA

7226.8 114300

5.5.8 8th Energy Level

NANA

8857.4 125300

5.5.9 9th Energy Level

NANA

14110 134700

5.5.10 10th Energy Level

NANA

17100 144300

5.5.11 11th Energy Level

NANA

19900 169988

5.5.12 12th Energy Level

NANA

22219 189368

5.5.13 13th Energy Level

NANA

26930 76015

5.5.14 14th Energy Level

NANA

29196 86450

5.5.15 15th Energy Level

NANA

41987 97510

5.5.16 16th Energy Level

NANA

47206 109480

5.5.17 17th Energy Level

NANA

52737 122200

5.5.18 18th Energy Level

NANA

58570 134810

5.5.19 19th Energy Level

NANA

64702 148700

5.5.20 20th Energy Level

NANA

80400 171200

5.5.21 21st Energy Level

NANA

87000 179100

5.5.22 22nd Energy Level

NANA

93400 184900

5.5.23 23rd Energy Level

NANA

98420 198800

5.5.24 24th Energy Level

NANA

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

NA1.35 g/amp-hr

0.16812 8.3209

5.7 Electron Work Function

NA4.25 eV

2.14 5.65

5.8 Other Chemical Properties

Ionization, Radioactive Isotopes

Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility

6 Atomic

6.1 Atomic Number

10773

3 117

6.2 Electron Configuration

[Rn] 5f¹⁴ 6d⁵ 7s²

[Xe] 4f¹⁴ 5d³ 6s²

6.3 Crystal Structure

Hexagonal Close Packed (HCP)

Body Centered Cubic (BCC)

6.3.1 Crystal Lattice

6.4 Atom

6.4.1 Number of Protons

10773

3 117

6.4.2 Number of Neutrons

155108

4 184

6.4.3 Number of Electrons

10773

3 117

6.5 Radius of an Atom

6.5.1 Atomic Radius

128.00 pm146.00 pm

112 265

6.5.2 Covalent Radius

141.00 pm170.00 pm

96 260

6.5.3 Van der Waals Radius

NA200.00 pm

139 348

6.6 Atomic Weight

270.00 amu180.95 amu

6.94 294

6.7 Atomic Volume

NA10.90 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

NA110.00 (-eV)

8 392.42

6.10 Lattice Constant

NA330.13 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

37.10 g/cm³16.69 g/cm³

0.534 40.7

7.1.2 Density When Liquid (at m.p.)

NA15.00 g/cm3

0.512 20

7.2 Tensile Strength

NANA

2.5 11000

7.3 Viscosity

NANA

0.001526 0.001526

7.4 Vapor Pressure

7.4.1 Vapor Pressure at 1000 K

NANA

2.47E-11 121

7.4.2 Vapor Pressure at 2000 K

NA0.00 (Pa)

2.62E-10 774

7.5 Elasticity properties

7.5.1 Shear Modulus

NA69.00 GPa

1.3 222

7.5.2 Bulk Modulus

NA200.00 GPa

1.6 462

7.5.3 Young's Modulus

NA186.00 GPa

1.7 528

7.6 Poisson Ratio

NA0.34

0.032 0.47

7.7 Other Mechanical Properties

Unknown

Ductile

8 Magnetic

8.1 Magnetic Characteristics

8.1.1 Specific Gravity

NA16.65

0.53 4500

8.1.2 Magnetic Ordering

Unknown

Paramagnetic

8.1.3 Permeability

NANA

1.25643E-06 0.0063

8.1.4 Susceptibility

NANA

-0.000166 200000

8.2 Electrical Properties

8.2.1 Electrical Property

Unknown

Conductor

8.2.2 Resistivity

NA131.00 nΩ·m

0.18 961

8.2.3 Electrical Conductivity

NA0.08 10⁶/cm Ω

0.00666 0.63

8.2.4 Electron Affinity

NA31.00 kJ/mol

0 222.8

9 Thermal

9.1 Specific Heat

NA0.14 J/(kg K)

0.11 3.6

9.2 Molar Heat Capacity

NA25.36 J/mol·K

16.443 62.7

9.3 Thermal Conductivity

NA57.50 W/m·K

6.3 429

9.4 Critical Temperature

NANA

26.3 3223

9.5 Thermal Expansion

NA6.30 µm/(m·K)

4.5 97

9.6 Enthalpy

9.6.1 Enthalpy of Vaporization

NA753.10 kJ/mol

7.32 799.1

9.6.2 Enthalpy of Fusion

NA31.40 kJ/mol

2.1 35.23

9.6.3 Enthalpy of Atomization

NA782.00 kJ/mol

61.5 837

9.7 Standard Molar Entropy

NA41.50 J/mol.K

9.5 198.1

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