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Actinium
Actinium

Gallium
Gallium



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Actinium vs Gallium

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1 Periodic Table
1.1 Symbol
Ac
Ga
1.2 Group Number
NA13
Gadolinium
0 17
1.3 Period Number
74
Lithium
2 7
1.4 Block
f block
p block
1.5 Element Family
Actinide
Post-​Transition
1.6 CAS Number
74403487440553
Aluminium
7429905 54386242
1.7 Space Group Name
Fm_ 3m
Cmca
1.8 Space Group Number
225.0064.00
Plutonium
11 229
2 Facts
2.1 Interesting Facts
Not Available
  • A gram of Gallium metal can be bought for only three dollars.
  • Gallium metal found in ores of following things Coal, Bauxite, Diaspore, Sphalerite, Germanite and Zinc.
2.2 Sources
Obtained by Treating Radium with Neutrons, Ores of metals
Earth's crust, Found in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Friedrich Oskar Giesel
Lecoq de Boisbaudran
2.3.2 Discovery
In 1902
In 1875
2.4 Abundance
2.4.1 Abundance In Universe
NA1 * 10-6 %
Thallium
5E-09 0.11
2.4.2 Abundance In Sun
~-9999 %~0.000004 %
Beryllium
1E-08 0.1
1.2.1 Abundance In Meteorites
NA0.00 %
Gold
1.7E-07 22
1.2.1 Abundance In Earth's Crust
NA0.00 %
Radium
9.9E-12 8.1
1.2.4 Abundance In Oceans
NA0.00 %
Protactinium
2E-23 1.1
1.5.1 Abundance In Humans
NANA
Radium
1E-13 1.4
2 Uses
2.1 Uses & Benefits
  • Actinium metal has a great source of alpha rays but it is hardly used outside research purpose.
  • Gallium arsenide is a very important component of many semiconductors and led manufacturing.
  • Gallium nitride is also know as a semiconductor and it is used in Blu-ray technology, mobile smartphones and LED.
2.1.1 Industrial Uses
NA
Electrical Industry, Electronic Industry
2.1.2 Medical Uses
NA
Surgical Instruments Manufacturing
2.1.3 Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys
2.2 Biological Properties
2.2.1 Toxicity
Toxic
Non Toxic
2.2.2 Present in Human Body
2.2.3 In Blood
0.00 Blood/mg dm-30.08 Blood/mg dm-3
Plutonium
0 1970
2.4.2 In Bone
0.00 p.p.m.NA
Plutonium
0 170000
3 Physical
3.1 Melting Point
1,227.00 °C29.78 °C
Francium
27 3410
1.3 Boiling Point
3,200.00 °C2,403.00 °C
Flerovium
147 5660
1.4 Appearance
1.4.1 Physical State
Solid
Solid
1.4.2 Color
Silvery White
Silvery White
1.5.1 Luster
NA
Metallic
1.6 Hardness
1.6.1 Mohs Hardness
NA1.50
Cesium
0.2 8.5
1.6.3 Brinell Hardness
NA56.80 MPa
Cesium
0.14 3490
1.9.2 Vickers Hardness
NANA
Palladium
121 3430
1.12 Speed of Sound
NA2,740.00 m/s
Thallium
818 16200
3.3 Optical Properties
3.3.1 Refractive Index
NANA
Mercury
1.000933 1.7229
3.3.3 Reflectivity
NANA
Molybdenum
58 97
3.4 Allotropes
3.4.1 α Allotropes
Not Available
Not Available
3.4.2 β Allotropes
Not Available
Not Available
3.4.3 γ Allotropes
Not Available
Not Available
4 Chemical
4.1 Chemical Formula
Ac
Ga
4.2 Isotopes
4.2.1 Known Isotopes
2924
Tennessine
0 38
5.2 Electronegativity
5.2.1 Pauling Electronegativity
1.101.81
Francium
0.7 2.54
5.3.1 Sanderson Electronegativity
NA2.42
Cesium
0.22 2.56
5.3.4 Allred Rochow Electronegativity
1.001.82
Cesium
0.86 1.82
5.5.2 Mulliken-Jaffe Electronegativity
NA2.01
Cesium
0.62 2.48
6.2.5 Allen Electronegativity
NA1.76
Cesium
0.659 2.7
6.3 Electropositivity
6.3.1 Pauling Electropositivity
2.902.19
Gold
1.46 3.3
7.2 Ionization Energies
7.2.1 1st Energy Level
499.00 kJ/mol578.80 kJ/mol
Cesium
375.7 26130
7.3.1 2nd Energy Level
1,170.00 kJ/mol1,979.30 kJ/mol
Ruthenium
710.2162 28750
7.4.1 3rd Energy Level
1,900.00 kJ/mol2,963.00 kJ/mol
Osmium
1600 34230
7.7.2 4th Energy Level
4,700.00 kJ/mol6,180.00 kJ/mol
Thorium
2780 37066
7.7.5 5th Energy Level
NANA
Dubnium
4305.2 97510
8.2.2 6th Energy Level
NANA
Seaborgium
5715.8 105800
8.4.2 7th Energy level
NANA
Bohrium
7226.8 114300
8.5.2 8th Energy Level
NANA
Hassium
8857.4 125300
8.5.5 9th Energy Level
NANA
Yttrium
14110 134700
9.2.2 10th Energy Level
NANA
Strontium
17100 144300
9.3.2 11th Energy Level
NANA
Yttrium
19900 169988
9.3.5 12th Energy Level
NANA
Molybdenum
22219 189368
9.4.2 13th Energy Level
NANA
Molybdenum
26930 76015
9.5.2 14th Energy Level
NANA
Molybdenum
29196 86450
9.5.5 15th Energy Level
NANA
Manganese
41987 97510
9.5.8 16th Energy Level
NANA
Iron
47206 109480
9.6.2 17th Energy Level
NANA
Cobalt
52737 122200
9.7.2 18th Energy Level
NANA
Nickel
58570 134810
9.7.4 19th Energy Level
NANA
Copper
64702 148700
9.7.7 20th Energy Level
NANA
Molybdenum
80400 171200
9.7.9 21st Energy Level
NANA
Molybdenum
87000 179100
9.7.12 22nd Energy Level
NANA
Molybdenum
93400 184900
9.7.14 23rd Energy Level
NANA
Molybdenum
98420 198800
9.7.16 24th Energy Level
NANA
Molybdenum
104400 195200
9.7.18 25th Energy Level
NANA
Molybdenum
121900 121900
9.7.21 26th Energy Level
NANA
Molybdenum
127700 127700
9.7.23 27th Energy Level
NANA
Molybdenum
133800 133800
9.7.26 28th Energy Level
NANA
Molybdenum
139800 139800
9.7.27 29th Energy Level
NANA
Molybdenum
148100 148100
9.7.30 30th Energy Level
NANA
Molybdenum
154500 154500
9.8 Electrochemical Equivalent
2.82 g/amp-hr0.87 g/amp-hr
Beryllium
0.16812 8.3209
9.9 Electron Work Function
NA4.20 eV
Cesium
2.14 5.65
9.10 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Ionization, Radioactive Isotopes
10 Atomic
10.1 Atomic Number
8931
Lithium
3 117
10.2 Electron Configuration
[Rn] 6d1 7s2
[Ar] 3d10 4s2 4p1
10.3 Crystal Structure
Face Centered Cubic (FCC)
Orthorhombic (ORTH)
10.3.1 Crystal Lattice
10.4 Atom
10.4.1 Number of Protons
8931
Lithium
3 117
10.4.4 Number of Neutrons
13839
Lithium
4 184
10.4.7 Number of Electrons
8931
Lithium
3 117
10.5 Radius of an Atom
10.5.1 Atomic Radius
195.00 pm135.00 pm
Beryllium
112 265
10.5.4 Covalent Radius
NA122.00 pm
Beryllium
96 260
10.5.7 Van der Waals Radius
NA187.00 pm
Zinc
139 348
10.6 Atomic Weight
227.00 amu69.72 amu
Lithium
6.94 294
10.7 Atomic Volume
22.54 cm3/mol11.80 cm3/mol
Manganese
1.39 71.07
10.8 Adjacent Atomic Numbers
10.8.1 Previous Element
10.8.2 Next Element
10.9 Valence Electron Potential
38.60 (-eV)69.70 (-eV)
Francium
8 392.42
10.10 Lattice Constant
567.00 pm451.97 pm
Beryllium
228.58 891.25
10.11 Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
10.12 Lattice C/A Ratio
NANA
Beryllium
1.567 1.886
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
10.00 g/cm35.91 g/cm3
Lithium
0.534 40.7
11.2.2 Density When Liquid (at m.p.)
NA6.10 g/cm3
Lithium
0.512 20
11.4 Tensile Strength
NANA
Indium
2.5 11000
12.2 Viscosity
NANA
Mercury
0.001526 0.001526
12.3 Vapor Pressure
12.3.1 Vapor Pressure at 1000 K
NA0.00 (Pa)
Cerium
2.47E-11 121
12.7.2 Vapor Pressure at 2000 K
NANA
Tungsten
2.62E-10 774
13.2 Elasticity properties
13.2.1 Shear Modulus
NANA
Potassium
1.3 222
13.5.3 Bulk Modulus
NANA
Cesium
1.6 462
13.6.2 Young's Modulus
NA9.80 GPa
Cesium
1.7 528
13.7 Poisson Ratio
NA0.47
Beryllium
0.032 0.47
13.9 Other Mechanical Properties
NA
NA
14 Magnetic
14.1 Magnetic Characteristics
14.1.1 Specific Gravity
10.075.91
Lithium
0.53 4500
14.2.1 Magnetic Ordering
Paramagnetic
Diamagnetic
14.2.2 Permeability
NANA
Bismuth
1.25643E-06 0.0063
14.2.4 Susceptibility
NANA
Bismuth
-0.000166 200000
14.5 Electrical Properties
14.5.1 Electrical Property
Unknown
Semiconductor
14.5.2 Resistivity
NA270.00 nΩ·m
Thallium
0.18 961
14.8.1 Electrical Conductivity
NA0.07 106/cm Ω
Plutonium
0.00666 0.63
14.10.1 Electron Affinity
NA28.90 kJ/mol
Mercury
0 222.8
16 Thermal
16.1 Specific Heat
0.12 J/(kg K)0.37 J/(kg K)
Americium
0.11 3.6
17.2 Molar Heat Capacity
27.20 J/mol·K25.86 J/mol·K
Beryllium
16.443 62.7
17.4 Thermal Conductivity
12.00 W/m·K40.60 W/m·K
Neptunium
6.3 429
17.9 Critical Temperature
NANA
Ytterbium
26.3 3223
17.11 Thermal Expansion
NA18.00 µm/(m·K)
Tungsten
4.5 97
17.13 Enthalpy
17.13.1 Enthalpy of Vaporization
NA256.10 kJ/mol
Zinc
7.32 799.1
17.14.2 Enthalpy of Fusion
NA5.59 kJ/mol
Cesium
2.1 35.23
17.14.5 Enthalpy of Atomization
301.00 kJ/mol276.10 kJ/mol
Mercury
61.5 837
17.15 Standard Molar Entropy
56.50 J/mol.K40.80 J/mol.K
Beryllium
9.5 198.1