Ytterbium

Scandium

Ytterbium vs Scandium

Ytterbium

Scandium

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1 Periodic Table

1.1 Symbol

1.2 Group Number

NA3

0 17

1.3 Period Number

2 7

1.4 Block

f block

d block

1.5 Element Family

Lanthanide

Transition Metal

1.6 CAS Number

74406447440202

7429905 54386242

1.7 Space Group Name

Fm_ 3m

P63/mmc

1.8 Space Group Number

225.00194.00

11 229

2 Facts

2.1 Interesting Facts

Ytterbium metal oxidizes rapidly if exposed to air.
Ytterbium metal can dissolve quickly in Mineral acid.

Scandium is known as one of the rare earth elements.
Scandium metal found in rare minerals called Wolframite .

2.2 Sources

Found in Minerals, Mining, Ores of Minerals

Found in Minerals, Mining, Ores of metals, Ores of Minerals

2.3 History

2.3.1 Who Discovered

Jean Charles Galissard de Marignac

Lars Fredrik Nilson

2.3.2 Discovery

In 1878

In 1879

2.4 Abundance

2.4.1 Abundance In Universe

2 * 10^-7 %3 * 10^-6 %

5E-09 0.11

2.4.2 Abundance In Sun

~0.0000001 %~0.000004 %

1E-08 0.1

2.4.3 Abundance In Meteorites

0.00 %0.00 %

1.7E-07 22

2.4.4 Abundance In Earth's Crust

0.00 %0.00 %

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

NANA

1E-13 1.4

3 Uses

3.1 Uses & Benefits

Ytterbium metal is used in memory devices and tuneable laser.
It is also used as industrial catalyst as the other catalysts are too toxic and polluting.

Uses of Scandium are limited to research purpose only. However, it has very low density and higher melting point.
Its compounds like scandium iodide is used in mercury vapor lamps to produce very bright white light.

3.1.1 Industrial Uses

Automobile Industry, Chemical Industry

Electrical Industry, Electronic Industry

3.1.2 Medical Uses

3.1.3 Other Uses

Alloys

3.2 Biological Properties

3.2.1 Toxicity

Highly Toxic

Non Toxic

3.2.2 Present in Human Body

✔ ✘

3.2.3 In Blood

NA0.01 Blood/mg dm-3

0 1970

3.2.4 In Bone

NA0.00 p.p.m.

0 170000

4 Physical

4.1 Melting Point

824.00 °C1,539.00 °C

27 3410

4.2 Boiling Point

1,196.00 °C2,832.00 °C

147 5660

4.3 Appearance

4.3.1 Physical State

Solid

4.3.2 Color

Silvery White

4.3.3 Luster

Metallic

Lustrous

4.4 Hardness

4.4.1 Mohs Hardness

NANA

0.2 8.5

4.4.2 Brinell Hardness

343.00 MPa750.00 MPa

0.14 3490

4.4.3 Vickers Hardness

206.00 MPaNA

121 3430

4.5 Speed of Sound

1,590.00 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

3013

0 38

5.3 Electronegativity

5.3.1 Pauling Electronegativity

NA1.36

0.7 2.54

5.3.2 Sanderson Electronegativity

NA1.02

0.22 2.56

5.3.3 Allred Rochow Electronegativity

1.061.20

0.86 1.82

5.3.4 Mulliken-Jaffe Electronegativity

NANA

0.62 2.48

5.3.5 Allen Electronegativity

NA1.19

0.659 2.7

5.4 Electropositivity

5.4.1 Pauling Electropositivity

NA2.64

1.46 3.3

5.5 Ionization Energies

5.5.1 1st Energy Level

603.40 kJ/mol633.10 kJ/mol

375.7 26130

5.5.2 2nd Energy Level

1,174.80 kJ/mol1,235.00 kJ/mol

710.2162 28750

5.5.3 3rd Energy Level

2,417.00 kJ/mol2,388.60 kJ/mol

1600 34230

5.5.4 4th Energy Level

4,203.00 kJ/mol7,090.60 kJ/mol

2780 37066

5.5.5 5th Energy Level

NA8,843.00 kJ/mol

4305.2 97510

5.5.6 6th Energy Level

NA10,679.00 kJ/mol

5715.8 105800

5.5.7 7th Energy level

NA13,310.00 kJ/mol

7226.8 114300

5.5.8 8th Energy Level

NA15,250.00 kJ/mol

8857.4 125300

5.5.9 9th Energy Level

NA17,370.00 kJ/mol

14110 134700

5.5.10 10th Energy Level

NA21,726.00 kJ/mol

17100 144300

5.5.11 11th Energy Level

NA24,102.00 kJ/mol

19900 169988

5.5.12 12th Energy Level

NA66,320.00 kJ/mol

22219 189368

5.5.13 13th Energy Level

NA73,010.00 kJ/mol

26930 76015

5.5.14 14th Energy Level

NA80,160.00 kJ/mol

29196 86450

5.5.15 15th Energy Level

NA89,490.00 kJ/mol

41987 97510

5.5.16 16th Energy Level

NA97,400.00 kJ/mol

47206 109480

5.5.17 17th Energy Level

NA105,600.00 kJ/mol

52737 122200

5.5.18 18th Energy Level

NA117,000.00 kJ/mol

58570 134810

5.5.19 19th Energy Level

NA124,270.00 kJ/mol

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

2.15 g/amp-hr0.56 g/amp-hr

0.16812 8.3209

5.7 Electron Work Function

NA3.50 eV

2.14 5.65

5.8 Other Chemical Properties

Ionization, Radioactive Isotopes, Solubility

Corrosion, Flammable, Ionization, Radioactive Isotopes, Solubility

6 Atomic

6.1 Atomic Number

7021

3 117

6.2 Electron Configuration

[Xe] 4f¹⁴ 6s²

[Ar] 3d¹ 4s²

6.3 Crystal Structure

Face Centered Cubic (FCC)

Hexagonal Close Packed (HCP)

6.3.1 Crystal Lattice

6.4 Atom

6.4.1 Number of Protons

7021

3 117

6.4.2 Number of Neutrons

10324

4 184

6.4.3 Number of Electrons

7021

3 117

6.5 Radius of an Atom

6.5.1 Atomic Radius

176.00 pm162.00 pm

112 265

6.5.2 Covalent Radius

187.00 pm170.00 pm

96 260

6.5.3 Van der Waals Radius

242.00 pm211.00 pm

139 348

6.6 Atomic Weight

173.05 amu44.96 amu

6.94 294

6.7 Atomic Volume

24.79 cm3/mol15.00 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

50.30 (-eV)58.00 (-eV)

8 392.42

6.10 Lattice Constant

548.47 pm330.90 pm

228.58 891.25

6.11 Lattice Angles

π/2, π/2, π/2

π/2, π/2, 2 π/3

6.12 Lattice C/A Ratio

NA1.59

1.567 1.886

7 Mechanical

7.1 Density

7.1.1 Density At Room Temperature

6.90 g/cm³2.99 g/cm³

0.534 40.7

7.1.2 Density When Liquid (at m.p.)

6.21 g/cm32.80 g/cm3

0.512 20

7.2 Tensile Strength

58.00 MPaNA

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

NA91.30 (Pa)

2.62E-10 774

7.5 Elasticity properties

7.5.1 Shear Modulus

9.90 GPa29.10 GPa

1.3 222

7.5.2 Bulk Modulus

30.50 GPa56.60 GPa

1.6 462

7.5.3 Young's Modulus

23.90 GPa74.40 GPa

1.7 528

7.6 Poisson Ratio

0.210.28

0.032 0.47

7.7 Other Mechanical Properties

Ductile, Malleable

8 Magnetic

8.1 Magnetic Characteristics

8.1.1 Specific Gravity

6.972.99

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

8.2.2 Resistivity

0.25 nΩ·m562.00 nΩ·m

0.18 961

8.2.3 Electrical Conductivity

0.04 10⁶/cm Ω0.02 10⁶/cm Ω

0.00666 0.63

8.2.4 Electron Affinity

50.00 kJ/mol18.10 kJ/mol

0 222.8

9 Thermal

9.1 Specific Heat

0.15 J/(kg K)0.60 J/(kg K)

0.11 3.6

9.2 Molar Heat Capacity

26.74 J/mol·K25.52 J/mol·K

16.443 62.7

9.3 Thermal Conductivity

38.50 W/m·K15.80 W/m·K

6.3 429

9.4 Critical Temperature

26.30 KNA

26.3 3223

9.5 Thermal Expansion

26.30 µm/(m·K)10.20 µm/(m·K)

4.5 97

9.6 Enthalpy

9.6.1 Enthalpy of Vaporization

128.90 kJ/mol314.20 kJ/mol

7.32 799.1

9.6.2 Enthalpy of Fusion

7.66 kJ/mol14.10 kJ/mol

2.1 35.23

9.6.3 Enthalpy of Atomization

180.00 kJ/mol343.00 kJ/mol

61.5 837

9.7 Standard Molar Entropy

59.90 J/mol.K34.60 J/mol.K

9.5 198.1

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