Atomic Number | 31 |
---|---|
Atomic Weight | 69.723 |
Mass Number | 69 |
Group | 13 |
---|---|
Period | 4 |
Block | p |
Protons | 31 p+ |
---|---|
Neutrons | 38 n0 |
Electrons | 31 e- |
Atomic Radius | |
---|---|
Molar Volume | |
Covalent Radius | |
Metallic Radius | |
Ionic Radius | |
Crystal Radius | |
Van der Waals Radius | |
Density |
Energy | |
---|---|
Proton Affinity | |
Electron Affinity | |
Ionization Energy | |
Heat of Vaporization | |
Heat of Fusion | |
Heat of Formation | |
Electrons | |
Electron Shells | 2, 8, 18, 3 |
Valence Electrons | 3 ⓘ |
Electron Configuration | [Ar] 3d10 4s2 4p1ⓘ 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p1 |
Oxidation States | -5, -4, -3, -2, -1, 0, 1, 2, 3 |
Electronegativity | 1.81
|
Electrophilicity Index | |
States of Matter | |
Phase | Solid |
Gas Phase | |
Boiling Point | |
Melting Point | |
Critical Pressure | |
Critical Temperature | |
Triple Point | |
Visual | |
Gallium is a Silver. Ga has a CPK of #ff1493, Jmol of #c28f8f, and MOLCAS GV of #c28f8f. The Appearance of Element 31 is silver-white. | |
Color | Silver
|
Appearance | silver-white |
Refractive Index | |
Thermodynamic Properties | |
Thermal Conductivity | |
Thermal Expansion | |
Molar Heat Capacity | |
Specific Heat Capacity | |
Heat Capacity Ratio (Adiabatic Index) | |
Electrical Properties | |
Type | Conductor |
Electrical Conductivity | |
Electrical Resistivity | |
Superconducting Point | |
Magnetism | |
Type | diamagnetic |
Magnetic Susceptibility (Mass) | -0.000000003 m³/Kg
|
Magnetic Susceptibility (Molar) | -0.000000000209 m³/mol
|
Magnetic Susceptibility (Volume) | -0.0000177
|
Magnetic Ordering | |
Curie Point | |
Neel Point | |
Structure | |
The Crystal Structure of Gallium is ORC. The lattice constant of Ga is 4.51 Å. The lattice angles of Element 31 are π/2, π/2, π/2. | |
Crystal Structure | Base Centered Orthorhombic (ORC) |
Lattice Constant | |
Lattice Angles | π/2, π/2, π/2 |
Mechanical Properties | |
Gallium has a Brinell of 60 MPa, and Mohs hardness of 1.5 MPa. The Speed of Sound of Ga is 2740 m/s. | |
Hardness | |
Bulk Modulus | |
Shear Modulus | |
Young's Modulus | |
Poisson Ratio | |
Speed of Sound | |
Classification | |
The CAS Group of Gallium is IIIB. The IUPAC Group of Ga is IIIA. The Glawe Number of Element 31 is 79. The Mendeleev Number of Gallium (Ga) is 83. The Pettifor Number of Gallium is 81. The Goldschmidt Class of Ga is chalcophile. | |
Category | Post-transition metals, Poor metals |
CAS Group | IIIB |
IUPAC Group | IIIA |
Glawe Number | 79 |
Mendeleev Number | 83 |
Pettifor Number | 81 |
Geochemical Class | |
Goldschmidt Class | chalcophile |
The Dipole Polarizability of Gallium is 50 plus or minus 3 a₀. Ga has a C6 Dispersion Coefficient (CD) of 498 a₀, and C6 Dispersion Coefficient (GB) of 456 a₀. The Allotropes of Element 31 is . The Neutron Cross Section of Gallium (Ga) is 2.9. The Neutron Mass Absorption of Gallium is 0.0015. The Quantum Numbers of Ga is 2P1/2. The Space Group of Element 31 is 64 (Cmca).
Stable Isotopes | 2 |
---|---|
Unstable Isotopes | 31 |
Natural Isotopes | 2 |
Mass Number | 56 |
---|---|
Neutron Number | 25 |
Relative Atomic Mass | |
G-Factor | |
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | |
Spin | 3 |
Quadrupole Moment | |
Discovery Year | |
Parity | + |
Decay Mode | Intensity |
---|---|
p (proton emission) |
Mass Number | 57 |
---|---|
Neutron Number | 26 |
Relative Atomic Mass | |
G-Factor | |
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | |
Spin | 1/2 |
Quadrupole Moment | 0
|
Discovery Year | |
Parity | - |
Decay Mode | Intensity |
---|---|
p (proton emission) |
Mass Number | 58 |
---|---|
Neutron Number | 27 |
Relative Atomic Mass | |
G-Factor | |
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | |
Spin | 2 |
Quadrupole Moment | |
Discovery Year | |
Parity | + |
Decay Mode | Intensity |
---|---|
p (proton emission) |
Mass Number | 59 |
---|---|
Neutron Number | 28 |
Relative Atomic Mass | |
G-Factor | |
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | |
Spin | 3/2 |
Quadrupole Moment | |
Discovery Year | |
Parity | - |
Decay Mode | Intensity |
---|---|
p (proton emission) |
Mass Number | 60 |
---|---|
Neutron Number | 29 |
Relative Atomic Mass | |
G-Factor | |
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 72.4 ± 1.7 ms
|
Spin | 2 |
Quadrupole Moment | |
Discovery Year | 1995 |
Parity | + |
Decay Mode | Intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 1.6% |
β+α (β+-delayed α emission) | 0.023% |
Mass Number | 61 |
---|---|
Neutron Number | 30 |
Relative Atomic Mass | |
G-Factor | |
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 165.9 ± 2.5 ms
|
Spin | 3/2 |
Quadrupole Moment | |
Discovery Year | 1987 |
Parity | - |
Decay Mode | Intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 0.25% |
Mass Number | 62 |
---|---|
Neutron Number | 31 |
Relative Atomic Mass | |
G-Factor | 0
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 116.122 ± 0.021 ms
|
Spin | 0 |
Quadrupole Moment | 0
|
Discovery Year | 1978 |
Parity | + |
Decay Mode | Intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Mass Number | 63 |
---|---|
Neutron Number | 32 |
Relative Atomic Mass | |
G-Factor | 0.097866666666667 ± 0.00033333333333333
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 32.4 ± 0.5 s
|
Spin | 3/2 |
Quadrupole Moment | 0.212 ± 0.014
|
Discovery Year | 1965 |
Parity | - |
Decay Mode | Intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Mass Number | 64 |
---|---|
Neutron Number | 33 |
Relative Atomic Mass | |
G-Factor | 0
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 2.627 ± 0.012 m
|
Spin | 0 |
Quadrupole Moment | 0
|
Discovery Year | 1953 |
Parity |
Decay Mode | Intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Mass Number | 65 |
---|---|
Neutron Number | 34 |
Relative Atomic Mass | |
G-Factor | 1.182 ± 0.002
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 15.133 ± 0.028 m
|
Spin | 3/2 |
Quadrupole Moment | 0.21 ± 0.015
|
Discovery Year | 1938 |
Parity | - |
Decay Mode | Intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Mass Number | 66 |
---|---|
Neutron Number | 35 |
Relative Atomic Mass | |
G-Factor | 0
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 9.304 ± 0.008 h
|
Spin | 0 |
Quadrupole Moment | 0
|
Discovery Year | 1937 |
Parity | + |
Decay Mode | Intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Mass Number | 67 |
---|---|
Neutron Number | 36 |
Relative Atomic Mass | |
G-Factor | 1.2329333333333 ± 0.00033333333333333
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 3.2617 ± 0.0004 d
|
Spin | 3/2 |
Quadrupole Moment | 0.197 ± 0.002
|
Discovery Year | 1938 |
Parity | - |
Decay Mode | Intensity |
---|---|
ϵ (electron capture) | 100% |
Mass Number | 68 |
---|---|
Neutron Number | 37 |
Relative Atomic Mass | |
G-Factor | 0.01174 ± 0.00007
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 67.842 ± 0.016 m
|
Spin | 1 |
Quadrupole Moment | -0.0277 ± 0.0014
|
Discovery Year | 1937 |
Parity | + |
Decay Mode | Intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Mass Number | 69 |
---|---|
Neutron Number | 38 |
Relative Atomic Mass | |
G-Factor | 1.3433466666667 ± 0.00004
|
Abundance | 60.108 ± 0.05
|
Radioactivity | Stable |
Half Life | Not Radioactive ☢️ |
Spin | 3/2 |
Quadrupole Moment | 0.171 ± 0.002
|
Discovery Year | 1923 |
Parity | - |
Mass Number | 70 |
---|---|
Neutron Number | 39 |
Relative Atomic Mass | |
G-Factor | 0.571 ± 0.002
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 21.14 ± 0.05 m
|
Spin | 1 |
Quadrupole Moment | 0.105 ± 0.007
|
Discovery Year | 1937 |
Parity | + |
Decay Mode | Intensity |
---|---|
β− (β− decay) | 99.59% |
ϵ (electron capture) | 0.41% |
Mass Number | 71 |
---|---|
Neutron Number | 40 |
Relative Atomic Mass | |
G-Factor | 1.7068866666667 ± 0.00006
|
Abundance | 39.892 ± 0.05
|
Radioactivity | Stable |
Half Life | Not Radioactive ☢️ |
Spin | 3/2 |
Quadrupole Moment | 0.107 ± 0.001
|
Discovery Year | 1923 |
Parity | - |
Mass Number | 72 |
---|---|
Neutron Number | 41 |
Relative Atomic Mass | |
G-Factor | -0.044046666666667 ± 0.0000066666666666667
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 14.025 ± 0.01 h
|
Spin | 3 |
Quadrupole Moment | 0.53 ± 0.006
|
Discovery Year | 1939 |
Parity | - |
Decay Mode | Intensity |
---|---|
β− (β− decay) | 100% |
Mass Number | 73 |
---|---|
Neutron Number | 42 |
Relative Atomic Mass | |
G-Factor | 0.13933333333333 ± 0.0013333333333333
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 4.86 ± 0.03 h
|
Spin | 1/2 |
Quadrupole Moment | 0
|
Discovery Year | 1949 |
Parity | - |
Decay Mode | Intensity |
---|---|
β− (β− decay) | 100% |
Mass Number | 74 |
---|---|
Neutron Number | 43 |
Relative Atomic Mass | |
G-Factor | 0 ± 0.026666666666667
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 8.12 ± 0.12 m
|
Spin | 3 |
Quadrupole Moment | 0.55 ± 0.04
|
Discovery Year | 1956 |
Parity | - |
Decay Mode | Intensity |
---|---|
β− (β− decay) | 100% |
Mass Number | 75 |
---|---|
Neutron Number | 44 |
Relative Atomic Mass | |
G-Factor | 1.2233333333333 ± 0.0026666666666667
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 126 ± 2 s
|
Spin | 3/2 |
Quadrupole Moment | -0.285 ± 0.017
|
Discovery Year | 1960 |
Parity | - |
Decay Mode | Intensity |
---|---|
β− (β− decay) | 100% |
Mass Number | 76 |
---|---|
Neutron Number | 45 |
Relative Atomic Mass | |
G-Factor | -0.4725 ± 0.002
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 30.6 ± 0.6 s
|
Spin | 2 |
Quadrupole Moment | 0.33 ± 0.02
|
Discovery Year | 1961 |
Parity | - |
Decay Mode | Intensity |
---|---|
β− (β− decay) | 100% |
Mass Number | 77 |
---|---|
Neutron Number | 46 |
Relative Atomic Mass | |
G-Factor | 1.3453333333333 ± 0.002
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 13.2 ± 0.2 s
|
Spin | 3/2 |
Quadrupole Moment | -0.208 ± 0.013
|
Discovery Year | 1968 |
Parity | - |
Decay Mode | Intensity |
---|---|
β− (β− decay) | 100% |
Mass Number | 78 |
---|---|
Neutron Number | 47 |
Relative Atomic Mass | |
G-Factor | -0.607 ± 0.0025
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 5.09 ± 0.05 s
|
Spin | 2 |
Quadrupole Moment | 0.33 ± 0.02
|
Discovery Year | 1972 |
Parity | - |
Decay Mode | Intensity |
---|---|
β− (β− decay) | 100% |
Mass Number | 79 |
---|---|
Neutron Number | 48 |
Relative Atomic Mass | |
G-Factor | 0.69733333333333 ± 0.002
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 2.848 ± 0.003 s
|
Spin | 3/2 |
Quadrupole Moment | 0.158 ± 0.01
|
Discovery Year | 1974 |
Parity | - |
Decay Mode | Intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 0.089% |
Mass Number | 80 |
---|---|
Neutron Number | 49 |
Relative Atomic Mass | |
G-Factor | 0.006 ± 0.00066666666666667
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 1.9 ± 0.1 s
|
Spin | 6 |
Quadrupole Moment | 0.38 ± 0.02
|
Discovery Year | 1974 |
Parity | - |
Decay Mode | Intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 0.86% |
Mass Number | 81 |
---|---|
Neutron Number | 50 |
Relative Atomic Mass | |
G-Factor | 0.6984 ± 0.002
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 1.217 ± 0.005 s
|
Spin | 5/2 |
Quadrupole Moment | -0.048 ± 0.008
|
Discovery Year | 1976 |
Parity | - |
Decay Mode | Intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 12.5% |
Mass Number | 82 |
---|---|
Neutron Number | 51 |
Relative Atomic Mass | |
G-Factor | |
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 600 ± 2 ms
|
Spin | 2 |
Quadrupole Moment | |
Discovery Year | 1976 |
Parity | - |
Decay Mode | Intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 21.2% |
2n (2-neutron emission) |
Mass Number | 83 |
---|---|
Neutron Number | 52 |
Relative Atomic Mass | |
G-Factor | |
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 310 ± 0.7 ms
|
Spin | 5/2 |
Quadrupole Moment | |
Discovery Year | 1976 |
Parity | - |
Decay Mode | Intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 85% |
2n (2-neutron emission) |
Mass Number | 84 |
---|---|
Neutron Number | 53 |
Relative Atomic Mass | |
G-Factor | 0
|
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 97.6 ± 1.2 ms
|
Spin | 0 |
Quadrupole Moment | 0
|
Discovery Year | 1991 |
Parity | - |
Decay Mode | Intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 43% |
2n (2-neutron emission) | 1.6% |
Mass Number | 85 |
---|---|
Neutron Number | 54 |
Relative Atomic Mass | |
G-Factor | |
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 95.3 ± 1 ms
|
Spin | 5/2 |
Quadrupole Moment | |
Discovery Year | 1997 |
Parity | - |
Decay Mode | Intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 77% |
2n (2-neutron emission) | 1.3% |
Mass Number | 86 |
---|---|
Neutron Number | 55 |
Relative Atomic Mass | |
G-Factor | |
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 49 ± 2 ms
|
Spin | |
Quadrupole Moment | |
Discovery Year | 1997 |
Parity |
Decay Mode | Intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 69% |
2n (2-neutron emission) | 16.2% |
Mass Number | 87 |
---|---|
Neutron Number | 56 |
Relative Atomic Mass | |
G-Factor | |
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | 29 ± 4 ms
|
Spin | 5/2 |
Quadrupole Moment | |
Discovery Year | 2010 |
Parity | - |
Decay Mode | Intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 81% |
2n (2-neutron emission) | 10.2% |
Mass Number | 88 |
---|---|
Neutron Number | 57 |
Relative Atomic Mass | |
G-Factor | |
Abundance | |
Radioactivity | ☢️ Radioactive |
Half Life | |
Spin | |
Quadrupole Moment | |
Discovery Year | |
Parity |
Decay Mode | Intensity |
---|---|
β− (β− decay) | |
β− n (β−-delayed neutron emission) |
In 1871, existence of gallium was first predicted by Russian chemist Dmitri Mendeleev and called the element eka-aluminum. Gallium was discovered spectroscopically by French chemist Paul Emile Lecoq de Boisbaudran in 1875 by its characteristic spectrum in an examination of a sphalerite sample. Later that year, Lecoq obtained the free metal by electrolysis of its hydroxide in potassium hydroxide solution. From the Latin word Gallia, France; also from Latin, gallus, a translation of Lecoq, a cock
Discoverers | Paul Émile Lecoq de Boisbaudran |
---|---|
Discovery Location | France |
Discovery Year | 1875 |
Etymology (Name Origin) | Latin: Gallia (France). |
Pronunciation | GAL-i-em (English) |
Found throughout the crust in minerals like bauxite, germanite and coal.
Abundance | |
---|---|
Abundance in Earth's crust | |
Natural Abundance (Oceans) | |
Natural Abundance (Human Body) | |
Natural Abundance (Meteor) | 0.00076 %
|
Natural Abundance (Sun) | 0.000004 %
|
Abundance in Universe | 0.000001 %
|
1 | s | 0.6906 |
2 | p | 3.9092 |
2 | s | 8.401 |
3 | d | 15.9067 |
3 | p | 14.7964 |
3 | s | 14.0038 |
4 | p | 24.7784 |
4 | s | 23.9332 |