Francium

Lithium

Francium vs Lithium

Francium

Lithium

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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

1.5 Element Family

Alkali

1.6 CAS Number

74407357439932

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

223 Francium has the longest half life at 21.8.
Francium metal is produced by alpha decay in ²²⁷Actinium 227.

Heat capacity of Lithium is very high.
Lithium inflammable and highly explosive metal, hence it has to be stored properly.

2.2 Sources

Formed by Decay Process, Mining

Found in Minerals, Mining

2.3 History

2.3.1 Who Discovered

Marguerite Perey

Johan August Arfwedson

2.3.2 Discovery

In 1939

In 1817

2.4 Abundance

2.4.1 Abundance In Universe

NA6 * 10^-7 %

5E-09 0.11

2.4.2 Abundance In Sun

~-9999 %~0.00017 %

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

NA0.00 %

1E-13 1.4

3 Uses

3.1 Uses & Benefits

Francium has no known uses as it has a half life of only 22 minutes.

The main usage of Lithium is manufacturing rechargeable batteries for electronic equipment and gadgets.
it is also used in manufacturing non-rechargeable batteries.

3.1.1 Industrial Uses

Aerospace Industry, Electrical Industry, Electronic Industry

3.1.2 Medical Uses

3.1.3 Other Uses

Alloys

3.2 Biological Properties

3.2.1 Toxicity

3.2.2 Present in Human Body

✔ ✘

3.2.3 In Blood

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

0 1970

3.2.4 In Bone

0.00 p.p.m.1.30 p.p.m.

0 170000

4 Physical

4.1 Melting Point

27.00 °C180.54 °C

27 3410

4.2 Boiling Point

677.00 °C1,347.00 °C

147 5660

4.3 Appearance

4.3.1 Physical State

Solid

4.3.2 Color

Silvery White

4.3.3 Luster

4.4 Hardness

4.4.1 Mohs Hardness

NA0.60

0.2 8.5

4.4.2 Brinell Hardness

NA5.00 MPa

0.14 3490

4.4.3 Vickers Hardness

NANA

121 3430

4.5 Speed of Sound

NA6,000.00 m/s

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

338

0 38

5.3 Electronegativity

5.3.1 Pauling Electronegativity

0.700.98

0.7 2.54

5.3.2 Sanderson Electronegativity

NA0.89

0.22 2.56

5.3.3 Allred Rochow Electronegativity

0.860.97

0.86 1.82

5.3.4 Mulliken-Jaffe Electronegativity

0.680.97

0.62 2.48

5.3.5 Allen Electronegativity

0.670.91

0.659 2.7

5.4 Electropositivity

5.4.1 Pauling Electropositivity

3.303.02

1.46 3.3

5.5 Ionization Energies

5.5.1 1st Energy Level

380.00 kJ/mol520.20 kJ/mol

375.7 26130

5.5.2 2nd Energy Level

NA7,298.10 kJ/mol

710.2162 28750

5.5.3 3rd Energy Level

NA11,815.00 kJ/mol

1600 34230

5.5.4 4th Energy Level

NANA

2780 37066

5.5.5 5th Energy Level

NANA

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

8.32 g/amp-hr0.26 g/amp-hr

0.16812 8.3209

5.7 Electron Work Function

NA2.90 eV

2.14 5.65

5.8 Other Chemical Properties

Ionization, Radioactive Isotopes, Radioactivity, Solubility

Corrosion, Flammable, Ionization, Radioactive Isotopes

6 Atomic

6.1 Atomic Number

873

3 117

6.2 Electron Configuration

[Rn] 7s¹

[He] 2s¹

6.3 Crystal Structure

Body Centered Cubic (BCC)

6.3.1 Crystal Lattice

6.4 Atom

6.4.1 Number of Protons

873

3 117

6.4.2 Number of Neutrons

1364

4 184

6.4.3 Number of Electrons

873

3 117

6.5 Radius of an Atom

6.5.1 Atomic Radius

NA152.00 pm

112 265

6.5.2 Covalent Radius

260.00 pm128.00 pm

96 260

6.5.3 Van der Waals Radius

348.00 pm182.00 pm

139 348

6.6 Atomic Weight

223.00 amu6.94 amu

6.94 294

6.7 Atomic Volume

NA13.10 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

8.00 (-eV)19.00 (-eV)

8 392.42

6.10 Lattice Constant

NA351.00 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

1.87 g/cm³0.53 g/cm³

0.534 40.7

7.1.2 Density When Liquid (at m.p.)

NA0.51 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

NA109.00 (Pa)

2.47E-11 121

7.4.2 Vapor Pressure at 2000 K

NANA

2.62E-10 774

7.5 Elasticity properties

7.5.1 Shear Modulus

NA4.20 GPa

1.3 222

7.5.2 Bulk Modulus

NA11.00 GPa

1.6 462

7.5.3 Young's Modulus

NA4.90 GPa

1.7 528

7.6 Poisson Ratio

NANA

0.032 0.47

7.7 Other Mechanical Properties

8 Magnetic

8.1 Magnetic Characteristics

8.1.1 Specific Gravity

NA0.53

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

Poor Conductor

Conductor

8.2.2 Resistivity

3.00 nΩ·m92.80 nΩ·m

0.18 961

8.2.3 Electrical Conductivity

0.03 10⁶/cm Ω0.11 10⁶/cm Ω

0.00666 0.63

8.2.4 Electron Affinity

NA59.60 kJ/mol

0 222.8

9 Thermal

9.1 Specific Heat

NA3.60 J/(kg K)

0.11 3.6

9.2 Molar Heat Capacity

NA24.86 J/mol·K

16.443 62.7

9.3 Thermal Conductivity

15.00 W/m·K84.80 W/m·K

6.3 429

9.4 Critical Temperature

NA3,223.00 K

26.3 3223

9.5 Thermal Expansion

NA46.00 µm/(m·K)

4.5 97

9.6 Enthalpy

9.6.1 Enthalpy of Vaporization

NA134.70 kJ/mol

7.32 799.1

9.6.2 Enthalpy of Fusion

NA3.00 kJ/mol

2.1 35.23

9.6.3 Enthalpy of Atomization

71.00 kJ/mol160.70 kJ/mol

61.5 837

9.7 Standard Molar Entropy

NA29.10 J/mol.K

9.5 198.1

Compare All Metals

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Francium vs Neptunium

Francium vs Actinium

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