
Bismuth (Bi) is a chemical element of the periodic table, located in the group 15 and the period 6, and has the atomic number 83. It is a brittle, silvery-pink post transition metal, whose name comes from the German word “wissmuth”, which means white mass. It is a member of the pnictogen group.
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– p block |
FAQs on Bismuth Element
Bismuth |
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‣ What does bismuth look like? Appearance: lustrous brownish silver |
‣ When was bismuth discovered and by whom? Discovery: Arabic alchemists (before AD 1000) |
‣ Where is bismuth located on the periodic table?![]() Location: Bismuth is found in the sixth row of the periodic table below the antimony element. |
‣ What is the atomic number of bismuth? Atomic number (Z): 83 |
‣ What is the symbol of bismuth? Symbol: Bi |
‣ Bismuth atomic weight: 208.98040 |
‣ What block does bismuth belong to? Block: p-block |
‣ What is the group number of the element bismuth? Group: 15 (pnictogens) |
‣ What period is bismuth in on the periodic table? Period: 6 |
‣ Bismuth atomic radius: empirical: 156 pm |
‣ Bismuth covalent radius: 148±4 pm |
‣ Bismuth Van der Waals radius: 207 pm |
‣ What is bismuth’s melting point? Melting point: 544.7 K (271.5 °C, 520.7 °F) |
‣ What is the boiling point of bismuth? Boiling point: 1837 K (1564 °C, 2847 °F) |
‣ How many electron shells does bismuth have? Electrons per shell: 2, 8, 18, 32, 18, 5 |
‣ What is the electron configuration for bismuth? Electron configuration: [Xe] 4f14 5d10 6s2 6p3 |
‣ What is the ionization energy of bismuth? Ionization energies: 1st: 703 kJ/mol 2nd: 1610 kJ/mol 3rd: 2466 kJ/mol |
‣ What is the phase of bismuth? Phase (at r.t): solid |
‣ What is bismuth’s density? Density (near r.t): 9.78 g/cm3 when liquid (at m.p): 10.05 g/cm3 |
‣ Bismuth magnetic ordering: diamagnetic |
‣ Bismuth natural occurrence: primordial |
‣ Bismuth oxidation state: +3 |
‣ What’s the electronegativity of bismuth? Electronegativity: Pauling scale: 2.02 |
‣ Bismuth poisson’s ratio: 0.33 |
‣ Bismuth heat of fusion: 11.30 kJ/mol |
‣ Bismuth heat of vaporization: 179 kJ/mol |
‣ Bismuth molar heat capacity: 25.52 J/(mol K) |
‣ Bismuth molar magnetic susceptibility: -280.1 × 10-6 cm3/mol |
‣ Speed of sound in bismuth: 1790 m/s (at 20 °C) |
‣ What is the crystal structure of bismuth? Crystal structure: rhombohedral |
‣ Thermal expansion of bismuth: 13.4 µm/(m.K) (at 25 °C) |
‣ Thermal conductivity of bismuth: 7.97 W/(m.K) |
‣ Bismuth electrical resistivity: 1.29 nΩ.m (at 20 °C) |
‣ What is the hardness of bismuth? Mohs hardness: 2.25 Brinell hardness: 70-95 MPa |
‣ Young’s modulus of bismuth: 32 GPa |
‣ Shear modulus of bismuth: 12 GPa |
‣ Bulk modulus of bismuth: 31 GPa |
‣ Bismuth CAS number: 7440-69-9 |
‣ Bismuth vapor pressure
Vapor pressure | ||||||
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P (Pa) | 1 | 10 | 100 | 1 k | 10 k | 100 k |
at T (K) | 941 | 1041 | 1165 | 1325 | 1538 | 1835 |
‣ How many isotopes does bismuth have?
Main isotopes of bismuth | ||||
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Isotope | Abundance | Half-life (t1/2) | Decay mode | Product |
207Bi | syn | 31.55 y | β+ | 207Pb |
208Bi | syn | 3.68 × 105 y | β+ | 208Pb |
209Bi | 100 % | 2.01 × 1019 y | α | 205Tl |
210Bi | trace | 5.012 d | β– α | 210Po 206Tl |
210Bi | syn | 3.04 × 106 y | IT α | 210Bi 206Tl |
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