Lanthanum

Meitnerium

Lanthanum Meitnerium Comparison

Lanthanum

Meitnerium

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1 Periodic Table

1.1 Symbol

1.2 Group Number

NA9

0 17

1.3 Period Number

2 7

1.4 Block

f block

d block

1.5 Element Family

Lanthanide

Probably Transition

1.6 CAS Number

743991054038016

7429905 54386242

1.7 Space Group Name

P63/mmc

Not Available

1.8 Space Group Number

194.00NA

11 229

2 Facts

2.1 Interesting Facts

Lanthanum metal is highly malleable, ductile and sectile.
If exposed to air Lanthanum metal oxidizes rapidly.

Not Available

2.2 Sources

Found in Minerals, Mining, Ores of Minerals

Bombarding Bi209 with Accelerated Nuclei of Fe58, Synthetically Produced

2.3 History

2.3.1 Who Discovered

Carl Gustaf Mosander

Gesellschaft für Schwerionenforschung

2.3.2 Discovery

In 1838

In 1982

2.4 Abundance

2.4.1 Abundance In Universe

2 * 10^-7 %NA

5E-09 0.11

2.4.2 Abundance In Sun

~0.0000002 %~-9999 %

1E-08 0.1

2.4.3 Abundance In Meteorites

0.00 %NA

1.7E-07 22

2.4.4 Abundance In Earth's Crust

0.00 %NA

9.9E-12 8.1

2.4.5 Abundance In Oceans

0.00 %NA

2E-23 1.1

2.4.6 Abundance In Humans

NANA

1E-13 1.4

3 Uses

3.1 Uses & Benefits

It has no commercial uses, but its alloys are in high demand. Lanthanum and Nickel alloy is used for the hydrogen gas storage.
The best-known use for mischmetal alloy of Lanthanum is; as a ‘flints’ for cigarette lighters.

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

3.1.1 Industrial Uses

Electrical Industry, Electronic Industry

3.1.2 Medical Uses

3.1.3 Other Uses

Alloys, Mirror Manufacturing

3.2 Biological Properties

3.2.1 Toxicity

Low Toxic

Unknown

3.2.2 Present in Human Body

✔ ✘

3.2.3 In Blood

NA0.00 Blood/mg dm-3

0 1970

3.2.4 In Bone

0.08 p.p.m.0.00 p.p.m.

0 170000

4 Physical

4.1 Melting Point

920.00 °CNA

27 3410

4.2 Boiling Point

3,469.00 °CNA

147 5660

4.3 Appearance

4.3.1 Physical State

Solid

4.3.2 Color

Silvery White

Unknown

4.3.3 Luster

Unknown Luster

4.4 Hardness

4.4.1 Mohs Hardness

2.50NA

0.2 8.5

4.4.2 Brinell Hardness

350.00 MPaNA

0.14 3490

4.4.3 Vickers Hardness

360.00 MPaNA

121 3430

4.5 Speed of Sound

2,475.00 m/sNA

818 16200

4.6 Optical Properties

4.6.1 Refractive Index

NANA

1.000933 1.7229

4.6.2 Reflectivity

NANA

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

314

0 38

5.3 Electronegativity

5.3.1 Pauling Electronegativity

1.10NA

0.7 2.54

5.3.2 Sanderson Electronegativity

NANA

0.22 2.56

5.3.3 Allred Rochow Electronegativity

1.08NA

0.86 1.82

5.3.4 Mulliken-Jaffe Electronegativity

NANA

0.62 2.48

5.3.5 Allen Electronegativity

NANA

0.659 2.7

5.4 Electropositivity

5.4.1 Pauling Electropositivity

2.90NA

1.46 3.3

5.5 Ionization Energies

5.5.1 1st Energy Level

538.10 kJ/mol800.80 kJ/mol

375.7 26130

5.5.2 2nd Energy Level

1,067.00 kJ/mol1,823.60 kJ/mol

710.2162 28750

5.5.3 3rd Energy Level

1,850.30 kJ/mol2,904.20 kJ/mol

1600 34230

5.5.4 4th Energy Level

4,819.00 kJ/mol3,859.40 kJ/mol

2780 37066

5.5.5 5th Energy Level

5,940.00 kJ/mol4,920.80 kJ/mol

4305.2 97510

5.5.6 6th Energy Level

NANA

5715.8 105800

5.5.7 7th Energy level

NANA

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

1.73 g/amp-hrNA

0.16812 8.3209

5.7 Electron Work Function

3.50 eVNA

2.14 5.65

5.8 Other Chemical Properties

Ionization, Radioactive Isotopes, Solubility

Ionization, Radioactive Isotopes, Radioactivity

6 Atomic

6.1 Atomic Number

57109

3 117

6.2 Electron Configuration

[Xe] 5d² 6s²

[Rn] 5f¹⁴ 6d⁷ 7s²

6.3 Crystal Structure

Double Hexagonal Close Packed (DHCP)

Face Centered Cubic (FCC)

6.3.1 Crystal Lattice

6.4 Atom

6.4.1 Number of Protons

57109

3 117

6.4.2 Number of Neutrons

82157

4 184

6.4.3 Number of Electrons

57109

3 117

6.5 Radius of an Atom

6.5.1 Atomic Radius

187.00 pm122.00 pm

112 265

6.5.2 Covalent Radius

207.00 pm129.00 pm

96 260

6.5.3 Van der Waals Radius

240.00 pmNA

139 348

6.6 Atomic Weight

138.91 amu278.00 amu

6.94 294

6.7 Atomic Volume

20.73 cm3/molNA

1.39 71.07

6.8 Adjacent Atomic Numbers

6.8.1 Previous Element

6.8.2 Next Element

6.9 Valence Electron Potential

40.71 (-eV)NA

8 392.42

6.10 Lattice Constant

377.20 pmNA

228.58 891.25

6.11 Lattice Angles

π/2, π/2, 2 π/3

6.12 Lattice C/A Ratio

1.62NA

1.567 1.886

7 Mechanical

7.1 Density

7.1.1 Density At Room Temperature

6.16 g/cm³37.40 g/cm³

0.534 40.7

7.1.2 Density When Liquid (at m.p.)

5.94 g/cm3NA

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

0.98 (Pa)NA

2.62E-10 774

7.5 Elasticity properties

7.5.1 Shear Modulus

14.30 GPaNA

1.3 222

7.5.2 Bulk Modulus

27.90 GPaNA

1.6 462

7.5.3 Young's Modulus

36.60 GPaNA

1.7 528

7.6 Poisson Ratio

0.28NA

0.032 0.47

7.7 Other Mechanical Properties

Ductile

8 Magnetic

8.1 Magnetic Characteristics

8.1.1 Specific Gravity

6.17NA

0.53 4500

8.1.2 Magnetic Ordering

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

Conductor

Unknown

8.2.2 Resistivity

615.00 nΩ·mNA

0.18 961

8.2.3 Electrical Conductivity

0.01 10⁶/cm ΩNA

0.00666 0.63

8.2.4 Electron Affinity

48.00 kJ/molNA

0 222.8

9 Thermal

9.1 Specific Heat

0.19 J/(kg K)NA

0.11 3.6

9.2 Molar Heat Capacity

27.11 J/mol·KNA

16.443 62.7

9.3 Thermal Conductivity

13.40 W/m·KNA

6.3 429

9.4 Critical Temperature

NANA

26.3 3223

9.5 Thermal Expansion

12.10 µm/(m·K)NA

4.5 97

9.6 Enthalpy

9.6.1 Enthalpy of Vaporization

399.60 kJ/molNA

7.32 799.1

9.6.2 Enthalpy of Fusion

6.20 kJ/molNA

2.1 35.23

9.6.3 Enthalpy of Atomization

431.00 kJ/molNA

61.5 837

9.7 Standard Molar Entropy

56.90 J/mol.KNA

9.5 198.1

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