Bohrium vs Seaborgium

Periodic Table

Symbol

Group Number

76 0 17

Period Number

77 2 7

Block

Element Family

CAS Number

5403714854038812 7429905 54386242

Space Group Name

Space Group Number

276.00166.00 11 276

Facts

Interesting Facts

Sources

History

Who Discovered

Discovery

Abundance

Abundance In Universe

0.00 %0.00 % 0 0.11

Abundance In Sun

-- 0 0.1

Abundance In Meteorites

0.00 %- 0 22

Abundance In Earth's Crust

0.00 %- 1E-37 8.1

Abundance In Oceans

-- 0 1.1

Abundance In Humans

-- 0 1.4

Uses

Uses & Benefits

Industrial Uses

Medical Uses

Other Uses

Biological Properties

Toxicity

Present in Human Body

In Blood

0.00 Blood/mg dm-30.00 Blood/mg dm-3 0 1970

In Bone

0.00 p.p.m.0.00 p.p.m. 0 170000

Physical

Melting Point

-- -38.83 3410

Boiling Point

0.00 °C0.00 °C 0 5660

Appearance

Physical State

Color

Luster

Hardness

Mohs Hardness

7.006.00 0.2 8.5

Brinell Hardness

270.00 MPa400.00 MPa 0.14 3490

Vickers Hardness

2,700.00 MPa520.00 MPa 0 3920

Speed of Sound

2,680.00 m/s3,200.00 m/s 818 16200

Optical Properties

Refractive Index

1.501.30 0.155 3.41

Reflectivity

59.00 %68.00 % 5 97

Allotropes

α Allotropes

β Allotropes

γ Allotropes

Chemical

Chemical Formula

Isotopes

Known Isotopes

59 0 38

Electronegativity

Pauling Electronegativity

2.000.00 0 2.6

Sanderson Electronegativity

1.301.90 0.22 2.56

Allred Rochow Electronegativity

1.301.30 0.86 1.9

Mulliken-Jaffe Electronegativity

1.301.30 0.62 2.48

Allen Electronegativity

2.001.90 0.659 2.7

Electropositivity

Pauling Electropositivity

2.002.20 1.46 3.3

Ionization Energies

1st Energy Level

742.90 kJ/mol757.40 kJ/mol 375.7 26130

2nd Energy Level

1,688.50 kJ/mol1,732.90 kJ/mol 392.8 28750

3rd Energy Level

2,566.50 kJ/mol2,483.50 kJ/mol 392.8 34230

4th Energy Level

3,598.90 kJ/mol3,415.60 kJ/mol 375.7 37066

5th Energy Level

4,727.80 kJ/mol4,561.80 kJ/mol 392 97510

6th Energy Level

5,991.70 kJ/mol5,715.80 kJ/mol 1007 105800

7th Energy level

7,226.80 kJ/mol5,700.00 kJ/mol 1007 114300

8th Energy Level

7,100.00 kJ/mol5,700.00 kJ/mol 730 125300

9th Energy Level

5,800.00 kJ/mol5,710.00 kJ/mol 1007 134700

10th Energy Level

7,100.00 kJ/mol6,270.00 kJ/mol 392 144300

11th Energy Level

8,200.00 kJ/mol6,600.00 kJ/mol 392 169988

12th Energy Level

82,700.00 kJ/mol971.00 kJ/mol 0 189368

13th Energy Level

7,100.00 kJ/mol5,700.00 kJ/mol 1007 76015

14th Energy Level

8,200.00 kJ/mol5,700.00 kJ/mol 380 86450

15th Energy Level

82,000.00 kJ/mol54,000.00 kJ/mol 33000 100700

16th Energy Level

71,100.00 kJ/mol64,000.00 kJ/mol 375.7 109480

17th Energy Level

820.00 kJ/mol579.80 kJ/mol 375.7 122200

18th Energy Level

8,200.00 kJ/mol3,300.00 kJ/mol 0 134810

19th Energy Level

820.80 kJ/mol579.80 kJ/mol 375.7 148700

20th Energy Level

820.00 kJ/mol579.00 kJ/mol 0 171200

21st Energy Level

8,200.00 kJ/mol6,270.00 kJ/mol 375.7 179100

22nd Energy Level

820.00 kJ/mol573.00 kJ/mol 330 184900

23rd Energy Level

8,200.00 kJ/mol5,790.00 kJ/mol 357.6 198800

24th Energy Level

820.00 kJ/mol971.00 kJ/mol 297.3 195200

25th Energy Level

820.00 kJ/mol0.00 kJ/mol 0 121900

26th Energy Level

820.00 kJ/mol579.10 kJ/mol 357.6 127700

27th Energy Level

820.00 kJ/mol870.00 kJ/mol 0 133800

28th Energy Level

820.00 kJ/mol870.00 kJ/mol 297.3 139800

29th Energy Level

820.00 kJ/mol761.90 kJ/mol 0 148100

30th Energy Level

820.00 kJ/mol0.00 kJ/mol 0 154500

Electrochemical Equivalent

3.00 g/amp-hr3.20 g/amp-hr 0.16812 8.3209

Electron Work Function

4.90 eV6.00 eV 2.14 6

Other Chemical Properties

Atomic

Atomic Number

107106 3 117

Electron Configuration

Crystal Structure

Crystal Lattice

Atom

Number of Protons

107106 3 117

Number of Neutrons

155157 4 285

Number of Electrons

107106 3 117

Radius of an Atom

Atomic Radius

128.00 pm132.00 pm 0 348

Covalent Radius

141.00 pm143.00 pm 0 260

Van der Waals Radius

0.00 pm230.00 pm 0 348

Atomic Weight

270.00 amu269.00 amu 6.94 294

Atomic Volume

23.70 cm3/mol35.00 cm3/mol 1.39 71.07

Adjacent Atomic Numbers

Previous Element

Next Element

Valence Electron Potential

27.20 (-eV)6.10 (-eV) 0 392.42

Lattice Constant

-- 0 891.25

Lattice Angles

Lattice C/A Ratio

1.571.36 0.423 1.9

Mechanical

Density

Density At Room Temperature

37.10 g/cm³35.00 g/cm³ 0.534 40.7

Density When Liquid (at m.p.)

37.10 g/cm335.00 g/cm3 0.512 41

Tensile Strength

152.00 MPa30.00 MPa 0.1 11000

Viscosity

0.000.00 1.5E-05 0.0035

Vapor Pressure

Vapor Pressure at 1000 K

0.00 (Pa)0.00 (Pa) 0 121

Vapor Pressure at 2000 K

0.00 (Pa)0.00 (Pa) 0 774

Elasticity properties

Shear Modulus

28.00 GPa30.00 GPa 1.3 222

Bulk Modulus

37.00 GPa0.00 GPa 0 462

Young's Modulus

0.00 GPa12.60 GPa 0 528

Poisson Ratio

0.350.25 0.032 0.47

Other Mechanical Properties

Magnetic

Magnetic Characteristics

Specific Gravity

37.0035.00 0.53 4500

Magnetic Ordering

Permeability

0.00 H/m0.00 H/m 1.25643E-06 0.0063

Susceptibility

0.000.00 -0.000166 200000

Electrical Properties

Electrical Property

Resistivity

6.50 nΩ·m0.38 nΩ·m 0.1 961

Electrical Conductivity

0.00 10⁶/cm Ω0.00 10⁶/cm Ω 0 0.63

Electron Affinity

-50.00 kJ/mol 0 222.8

Thermal

Specific Heat

0.10 J/(kg K)0.27 J/(kg K) 0.1 3.6

Molar Heat Capacity

37.10 J/mol·K35.00 J/mol·K 13.1 62.7

Thermal Conductivity

37.00 W/m·K0.14 W/m·K 0 429

Critical Temperature

1,323.00 K1,200.00 K 26.3 3695

Thermal Expansion

14.30 µm/(m·K)11.00 µm/(m·K) 4.5 97

Enthalpy

Enthalpy of Vaporization

270.50 kJ/mol585.00 kJ/mol 7.32 799.1

Enthalpy of Fusion

-- 2.1 35.23

Enthalpy of Atomization

-650.00 kJ/mol 61.5 837

Standard Molar Entropy

57.00 J/mol.K42.70 J/mol.K 9.5 198.1