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Beryllium
Beryllium

Radium
Radium



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Beryllium
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Beryllium Radium Comparison

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1 Periodic Table
1.1 Symbol
Be
Ra
1.2 Group Number
22
Gadolinium Metal
0 17
1.3 Period Number
27
Lithium Metal
2 7
1.4 Block
s block
s block
1.5 Element Family
Alkaline Earth
Alkaline Earth
1.6 CAS Number
74404177440144
Aluminium Metal
7429905 54386242
1.7 Space Group Name
P63/mmc
Im_ 3m
1.8 Space Group Number
194.00229.00
Plutonium Metal
11 229
2 Facts
2.1 Interesting Facts
  • Beryllium is best anti corrosion metal.
  • Beryllium is the lightest metal and still it is stronger than steel.
  • It also finds various applications in Nuclear reactors as a reflector.
  • Radium metal is the heaviest metal of Alkaline earth metals column.
  • Radium metal is highly radioactive and does not have any stable isotopes.
2.2 Sources
Earth's crust, Found in Minerals, Mining, Ores of metals, Ores of Minerals
Mining, Ores of metals
2.3 History
2.3.1 Who Discovered
Louis Nicolas Vauquelin
Not Available
2.3.2 Discovery
In 1797
In 1898
2.4 Abundance
2.4.1 Abundance In Universe
1 * 10-7 %NA
Thallium Metal
5E-09 0.11
2.4.2 Abundance In Sun
~0.00000001 %~-9999 %
Palladium
1E-08 0.1
2.4.3 Abundance In Meteorites
0.00 %NA
Gold Metal
1.7E-07 22
2.4.4 Abundance In Earth's Crust
0.00 %0.00 %
Palladium
9.9E-12 8.1
2.4.5 Abundance In Oceans
0.00 %0.00 %
Protactinium Metal
2E-23 1.1
2.4.6 Abundance In Humans
0.00 %0.00 %
Tin
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • Its alloys with copper or nickel are used in manufacturing Gyroscopes, springs, electrical contact and non sparking tools.
  • Beryllium Alloys are used as a material for aircraft, missiles, spacecraft and satellite.
  • It is a highly radioactive metal; and sometime Radium-223 is used to treat prostate cancer.
  • It is used in luminous paints.
3.1.1 Industrial Uses
Aerospace Industry, Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry
NA
3.1.2 Medical Uses
NA
Pharmaceutical Industry
3.1.3 Other Uses
Alloys
NA
3.2 Biological Properties
3.2.1 Toxicity
Toxic
Highly Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
0.00 Blood/mg dm-3NA
Plutonium Metal
0 1970
3.2.4 In Bone
0.00 p.p.m.NA
Plutonium Metal
0 170000
4 Physical
4.1 Melting Point
1,278.00 °C700.00 °C
Francium Metal
27 3410
4.2 Boiling Point
2,970.00 °C1,737.00 °C
Flerovium Metal
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
White Gray
Silvery White
4.3.3 Luster
Metallic
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
5.50NA
Cesium Metal
0.2 8.5
4.4.2 Brinell Hardness
590.00 MPaNA
Cesium Metal
0.14 3490
4.4.3 Vickers Hardness
1,670.00 MPaNA
Palladium Metal
121 3430
4.5 Speed of Sound
12,890.00 m/sNA
Thallium Metal
818 16200
4.6 Optical Properties
4.6.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
4.6.2 Reflectivity
NANA
Molybdenum Metal
58 97
4.7 Allotropes
4.7.1 α Allotropes
Not Available
Not Available
4.7.2 β Allotropes
Not Available
Not Available
4.7.3 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
Be
Ra
5.2 Isotopes
5.2.1 Known Isotopes
933
Tennessine Metal
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
1.570.90
Francium Metal
0.7 2.54
5.3.2 Sanderson Electronegativity
1.81NA
Cesium Metal
0.22 2.56
5.3.3 Allred Rochow Electronegativity
1.470.97
Cesium Metal
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
1.540.92
Cesium Metal
0.62 2.48
5.3.5 Allen Electronegativity
1.580.89
Cesium Metal
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
2.433.10
Gold Metal
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
899.50 kJ/mol509.30 kJ/mol
Cesium Metal
375.7 26130
5.5.2 2nd Energy Level
1,757.10 kJ/mol979.00 kJ/mol
Ruthenium Metal
710.2162 28750
5.5.3 3rd Energy Level
14,848.70 kJ/molNA
Osmium Metal
1600 34230
5.5.4 4th Energy Level
21,006.60 kJ/molNA
Thorium Metal
2780 37066
5.5.5 5th Energy Level
NANA
Dubnium Metal
4305.2 97510
5.5.6 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
5.5.7 7th Energy level
NANA
Bohrium Metal
7226.8 114300
5.5.8 8th Energy Level
NANA
Hassium Metal
8857.4 125300
5.5.9 9th Energy Level
NANA
Yttrium Metal
14110 134700
5.5.10 10th Energy Level
NANA
Strontium Metal
17100 144300
5.5.11 11th Energy Level
NANA
Yttrium Metal
19900 169988
5.5.12 12th Energy Level
NANA
Molybdenum Metal
22219 189368
5.5.13 13th Energy Level
NANA
Molybdenum Metal
26930 76015
5.5.14 14th Energy Level
NANA
Molybdenum Metal
29196 86450
5.5.15 15th Energy Level
NANA
Manganese Metal
41987 97510
5.5.16 16th Energy Level
NANA
Iron Metal
47206 109480
5.5.17 17th Energy Level
NANA
Cobalt Metal
52737 122200
5.5.18 18th Energy Level
NANA
Nickel Metal
58570 134810
5.5.19 19th Energy Level
NANA
Copper Metal
64702 148700
5.5.20 20th Energy Level
NANA
Molybdenum Metal
80400 171200
5.5.21 21st Energy Level
NANA
Molybdenum Metal
87000 179100
5.5.22 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
5.5.23 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
5.5.24 24th Energy Level
NANA
Molybdenum Metal
104400 195200
5.5.25 25th Energy Level
NANA
Molybdenum Metal
121900 121900
5.5.26 26th Energy Level
NANA
Molybdenum Metal
127700 127700
5.5.27 27th Energy Level
NANA
Molybdenum Metal
133800 133800
5.5.28 28th Energy Level
NANA
Molybdenum Metal
139800 139800
5.5.29 29th Energy Level
NANA
Molybdenum Metal
148100 148100
5.5.30 30th Energy Level
NANA
Molybdenum Metal
154500 154500
5.6 Electrochemical Equivalent
0.17 g/amp-hr4.22 g/amp-hr
Palladium
0.16812 8.3209
5.7 Electron Work Function
4.98 eVNA
Cesium Metal
2.14 5.65
5.8 Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes
Ionization, Radioactive Isotopes, Radioactivity
6 Atomic
6.1 Atomic Number
488
Lithium Metal
3 117
6.2 Electron Configuration
[He] 2s2
[Rn] 7s2
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
488
Lithium Metal
3 117
6.4.2 Number of Neutrons
5138
Lithium Metal
4 184
6.4.3 Number of Electrons
488
Lithium Metal
3 117
6.5 Radius of an Atom
6.5.1 Atomic Radius
112.00 pmNA
Palladium
112 265
6.5.2 Covalent Radius
96.00 pm221.00 pm
Palladium
96 260
6.5.3 Van der Waals Radius
153.00 pm283.00 pm
Zinc Metal
139 348
6.6 Atomic Weight
9.01 amu226.00 amu
Lithium Metal
6.94 294
6.7 Atomic Volume
5.00 cm3/mol45.20 cm3/mol
Manganese Metal
1.39 71.07
6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
82.00 (-eV)20.10 (-eV)
Francium Metal
8 392.42
6.10 Lattice Constant
228.58 pm514.80 pm
Palladium
228.58 891.25
6.11 Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
6.12 Lattice C/A Ratio
1.57NA
Cadmium Metal
1.567 1.886
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
1.85 g/cm35.50 g/cm3
Lithium Metal
0.534 40.7
7.1.2 Density When Liquid (at m.p.)
1.69 g/cm3NA
Lithium Metal
0.512 20
7.2 Tensile Strength
NANA
Indium Metal
2.5 11000
7.3 Viscosity
NANA
Mercury Metal
0.001526 0.001526
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
0.00 (Pa)NA
Cerium Metal
2.47E-11 121
7.4.2 Vapor Pressure at 2000 K
NANA
Tungsten Metal
2.62E-10 774
7.5 Elasticity properties
7.5.1 Shear Modulus
132.00 GPaNA
Potassium Metal
1.3 222
7.5.2 Bulk Modulus
130.00 GPaNA
Cesium Metal
1.6 462
7.5.3 Young's Modulus
287.00 GPaNA
Cesium Metal
1.7 528
7.6 Poisson Ratio
0.03NA
Iron
0.032 0.47
7.7 Other Mechanical Properties
NA
NA
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
1.855.00
Lithium Metal
0.53 4500
8.1.2 Magnetic Ordering
Diamagnetic
Nonmagnetic
8.1.3 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
8.1.4 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
8.2 Electrical Properties
8.2.1 Electrical Property
Semiconductor
NA
8.2.2 Resistivity
36.00 nΩ·m100.00 nΩ·m
Thallium Metal
0.18 961
8.2.3 Electrical Conductivity
0.31 106/cm ΩNA
Plutonium Metal
0.00666 0.63
8.2.4 Electron Affinity
0.00 kJ/molNA
Mercury Metal
0 222.8
9 Thermal
9.1 Specific Heat
1.82 J/(kg K)0.12 J/(kg K)
Americium Metal
0.11 3.6
9.2 Molar Heat Capacity
16.44 J/mol·KNA
Palladium
16.443 62.7
9.3 Thermal Conductivity
200.00 W/m·K18.60 W/m·K
Neptunium Metal
6.3 429
9.4 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
9.5 Thermal Expansion
11.30 µm/(m·K)NA
Tungsten Metal
4.5 97
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
294.70 kJ/molNA
Zinc Metal
7.32 799.1
9.6.2 Enthalpy of Fusion
11.72 kJ/molNA
Cesium Metal
2.1 35.23
9.6.3 Enthalpy of Atomization
326.40 kJ/mol163.00 kJ/mol
Mercury Metal
61.5 837
9.7 Standard Molar Entropy
9.50 J/mol.K71.00 J/mol.K
Palladium
9.5 198.1