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Beryllium
Beryllium

Curium
Curium



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Beryllium vs Curium

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1 Periodic Table
1.1 Symbol
Be
Cm
1.2 Group Number
2NA
Gadolinium
0 17
2.5 Period Number
27
Lithium
2 7
2.9 Block
s block
f block
2.10 Element Family
Alkaline Earth
Actinide
2.11 CAS Number
74404177440519
Aluminium
7429905 54386242
2.14 Space Group Name
P63/mmc
Not Available
2.15 Space Group Number
194.00NA
Plutonium
11 229
4 Facts
4.1 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.
  • Curium metal does not occur free in nature.
  • Curium metal is a synthetically produced metal.
4.3 Sources
Earth's crust, Found in Minerals, Mining, Ores of metals, Ores of Minerals
Bombarding Plutonium with Helium Ions
4.4 History
4.4.1 Who Discovered
Louis Nicolas Vauquelin
Glenn T. Seaborg, Ralph A. James, Albert Ghiorso
4.4.2 Discovery
In 1797
In 1944
4.5 Abundance
4.5.1 Abundance In Universe
1 * 10-7 %NA
Thallium
5E-09 0.11
4.5.3 Abundance In Sun
~0.00000001 %~-9999 %
Palladium
1E-08 0.1
4.5.5 Abundance In Meteorites
0.00 %NA
Gold
1.7E-07 22
4.6.2 Abundance In Earth's Crust
0.00 %NA
Radium
9.9E-12 8.1
4.7.2 Abundance In Oceans
0.00 %NA
Protactinium
2E-23 1.1
4.7.5 Abundance In Humans
0.00 %NA
Radium
1E-13 1.4
5 Uses
5.1 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.
  • Curium metal is used to provide power to electrical equipment for space missions.
5.1.1 Industrial Uses
Aerospace Industry, Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry
NA
5.1.3 Medical Uses
NA
NA
5.1.4 Other Uses
Alloys
Research Purposes
5.2 Biological Properties
5.2.1 Toxicity
Toxic
Unknown
5.2.2 Present in Human Body
5.2.3 In Blood
0.00 Blood/mg dm-30.00 Blood/mg dm-3
Plutonium
0 1970
6.2.5 In Bone
0.00 p.p.m.0.00 p.p.m.
Plutonium
0 170000
8 Physical
8.1 Melting Point
1,278.00 °C1,340.00 °C
Francium
27 3410
8.3 Boiling Point
2,970.00 °C3,110.00 °C
Flerovium
147 5660
8.6 Appearance
8.6.1 Physical State
Solid
Solid
8.6.2 Color
White Gray
Silver
8.6.3 Luster
Metallic
Metallic
8.7 Hardness
8.7.1 Mohs Hardness
5.50NA
Cesium
0.2 8.5
8.8.2 Brinell Hardness
590.00 MPaNA
Cesium
0.14 3490
9.2.3 Vickers Hardness
1,670.00 MPaNA
Palladium
121 3430
9.4 Speed of Sound
12,890.00 m/sNA
Thallium
818 16200
9.5 Optical Properties
9.5.1 Refractive Index
NANA
Mercury
1.000933 1.7229
9.5.4 Reflectivity
NANA
Molybdenum
58 97
9.6 Allotropes
9.6.1 α Allotropes
Not Available
Not Available
9.6.2 β Allotropes
Not Available
Not Available
9.6.3 γ Allotropes
Not Available
Not Available
10 Chemical
10.1 Chemical Formula
Be
Cm
10.2 Isotopes
10.2.1 Known Isotopes
915
Tennessine
0 38
10.5 Electronegativity
10.5.1 Pauling Electronegativity
1.571.30
Francium
0.7 2.54
10.5.6 Sanderson Electronegativity
1.81NA
Cesium
0.22 2.56
10.7.1 Allred Rochow Electronegativity
1.471.20
Cesium
0.86 1.82
11.1.1 Mulliken-Jaffe Electronegativity
1.54NA
Cesium
0.62 2.48
11.4.3 Allen Electronegativity
1.58NA
Cesium
0.659 2.7
11.5 Electropositivity
11.5.1 Pauling Electropositivity
2.432.70
Gold
1.46 3.3
11.6 Ionization Energies
11.6.1 1st Energy Level
899.50 kJ/mol581.00 kJ/mol
Cesium
375.7 26130
11.6.3 2nd Energy Level
1,757.10 kJ/mol1,196.00 kJ/mol
Ruthenium
710.2162 28750
11.7.3 3rd Energy Level
14,848.70 kJ/mol2,026.00 kJ/mol
Osmium
1600 34230
11.7.6 4th Energy Level
21,006.60 kJ/mol3,550.00 kJ/mol
Thorium
2780 37066
11.8.1 5th Energy Level
NANA
Dubnium
4305.2 97510
11.8.3 6th Energy Level
NANA
Seaborgium
5715.8 105800
11.9.2 7th Energy level
NANA
Bohrium
7226.8 114300
11.9.4 8th Energy Level
NANA
Hassium
8857.4 125300
11.11.2 9th Energy Level
NANA
Yttrium
14110 134700
11.11.4 10th Energy Level
NANA
Strontium
17100 144300
11.12.3 11th Energy Level
NANA
Yttrium
19900 169988
12.1.2 12th Energy Level
NANA
Molybdenum
22219 189368
12.2.2 13th Energy Level
NANA
Molybdenum
26930 76015
12.2.3 14th Energy Level
NANA
Molybdenum
29196 86450
12.4.1 15th Energy Level
NANA
Manganese
41987 97510
13.2.1 16th Energy Level
NANA
Iron
47206 109480
13.5.1 17th Energy Level
NANA
Cobalt
52737 122200
13.6.3 18th Energy Level
NANA
Nickel
58570 134810
13.7.2 19th Energy Level
NANA
Copper
64702 148700
13.7.3 20th Energy Level
NANA
Molybdenum
80400 171200
13.7.5 21st Energy Level
NANA
Molybdenum
87000 179100
13.7.7 22nd Energy Level
NANA
Molybdenum
93400 184900
13.8.2 23rd Energy Level
NANA
Molybdenum
98420 198800
13.8.4 24th Energy Level
NANA
Molybdenum
104400 195200
13.8.6 25th Energy Level
NANA
Molybdenum
121900 121900
13.8.8 26th Energy Level
NANA
Molybdenum
127700 127700
13.9.1 27th Energy Level
NANA
Molybdenum
133800 133800
13.10.1 28th Energy Level
NANA
Molybdenum
139800 139800
14.1.2 29th Energy Level
NANA
Molybdenum
148100 148100
14.2.1 30th Energy Level
NANA
Molybdenum
154500 154500
14.3 Electrochemical Equivalent
0.17 g/amp-hr3.07 g/amp-hr
Palladium
0.16812 8.3209
14.6 Electron Work Function
4.98 eVNA
Cesium
2.14 5.65
14.9 Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes
Ionization, Radioactive Isotopes
15 Atomic
15.1 Atomic Number
496
Lithium
3 117
16.2 Electron Configuration
[He] 2s2
[Rn] 5f7 6d1 7s2
16.3 Crystal Structure
Hexagonal Close Packed (HCP)
Double Hexagonal Close Packed (DHCP)
16.3.1 Crystal Lattice
16.4 Atom
16.4.1 Number of Protons
496
Lithium
3 117
16.4.4 Number of Neutrons
5151
Lithium
4 184
16.4.5 Number of Electrons
496
Lithium
3 117
17.5 Radius of an Atom
17.5.1 Atomic Radius
112.00 pm174.00 pm
Palladium
112 265
17.6.2 Covalent Radius
96.00 pm169.00 pm
Palladium
96 260
17.6.3 Van der Waals Radius
153.00 pm200.00 pm
Zinc
139 348
17.8 Atomic Weight
9.01 amu247.00 amu
Lithium
6.94 294
17.11 Atomic Volume
5.00 cm3/mol18.28 cm3/mol
Manganese
1.39 71.07
17.13 Adjacent Atomic Numbers
17.13.1 Previous Element
17.13.2 Next Element
17.14 Valence Electron Potential
82.00 (-eV)44.50 (-eV)
Francium
8 392.42
17.16 Lattice Constant
228.58 pmNA
Palladium
228.58 891.25
17.18 Lattice Angles
π/2, π/2, π/2
NA
17.19 Lattice C/A Ratio
1.57NA
Cadmium
1.567 1.886
18 Mechanical
18.1 Density
18.1.1 Density At Room Temperature
1.85 g/cm313.51 g/cm3
Lithium
0.534 40.7
19.1.2 Density When Liquid (at m.p.)
1.69 g/cm313.85 g/cm3
Lithium
0.512 20
19.2 Tensile Strength
NANA
Indium
2.5 11000
19.3 Viscosity
NANA
Mercury
0.001526 0.001526
19.6 Vapor Pressure
19.6.1 Vapor Pressure at 1000 K
0.00 (Pa)NA
Cerium
2.47E-11 121
19.6.3 Vapor Pressure at 2000 K
NANA
Tungsten
2.62E-10 774
19.7 Elasticity properties
19.7.1 Shear Modulus
132.00 GPaNA
Potassium
1.3 222
19.7.3 Bulk Modulus
130.00 GPaNA
Cesium
1.6 462
20.1.1 Young's Modulus
287.00 GPaNA
Cesium
1.7 528
20.4 Poisson Ratio
0.03NA
Iron
0.032 0.47
20.5 Other Mechanical Properties
NA
Unknown
21 Magnetic
21.1 Magnetic Characteristics
21.1.1 Specific Gravity
1.8513.51
Lithium
0.53 4500
21.2.1 Magnetic Ordering
Diamagnetic
Antiferromagnetic
21.2.2 Permeability
NANA
Bismuth
1.25643E-06 0.0063
21.3.1 Susceptibility
NANA
Bismuth
-0.000166 200000
21.4 Electrical Properties
21.4.1 Electrical Property
Semiconductor
Unknown
21.4.2 Resistivity
36.00 nΩ·m1.25 nΩ·m
Thallium
0.18 961
21.5.2 Electrical Conductivity
0.31 106/cm ΩNA
Plutonium
0.00666 0.63
21.5.4 Electron Affinity
0.00 kJ/molNA
Mercury
0 222.8
22 Thermal
22.1 Specific Heat
1.82 J/(kg K)NA
Americium
0.11 3.6
22.3 Molar Heat Capacity
16.44 J/mol·KNA
Palladium
16.443 62.7
22.4 Thermal Conductivity
200.00 W/m·KNA
Neptunium
6.3 429
22.5 Critical Temperature
NANA
Ytterbium
26.3 3223
22.6 Thermal Expansion
11.30 µm/(m·K)NA
Tungsten
4.5 97
22.7 Enthalpy
22.7.1 Enthalpy of Vaporization
294.70 kJ/molNA
Zinc
7.32 799.1
22.7.2 Enthalpy of Fusion
11.72 kJ/mol15.00 kJ/mol
Cesium
2.1 35.23
22.7.3 Enthalpy of Atomization
326.40 kJ/molNA
Mercury
61.5 837
22.8 Standard Molar Entropy
9.50 J/mol.KNA
Palladium
9.5 198.1