Input interpretation
zinc (chemical element)
Periodic table location
Periodic table location
Image
Image
Basic elemental properties
atomic symbol | Zn atomic number | 30 short electronic configuration | [Ar]4s^23d^10 Aufbau diagram | 3d 4s block | d group | 12 period | 4 atomic mass | 65.38 u (unified atomic mass units)
Thermodynamic properties
phase at STP | solid melting point | 419.53 °C (rank: 71st) boiling point | 907 °C (rank: 71st) molar heat of fusion | 7.35 kJ/mol (rank: 58th) molar heat of vaporization | 119 kJ/mol (rank: 66th) specific heat at STP | 388 J/(kg K) (rank: 31st) (properties at standard conditions)
Material properties
density | 7.14 g/cm^3 (rank: 49th) liquid density | 6.57 g/cm^3 molar volume | 9.16 cm^3/mol Mohs hardness | 2.5 (between gypsum and calcite) Brinell hardness | 412 MPa (rank: 35th) bulk modulus | 70 GPa (rank: 27th) shear modulus | 43 GPa Young's modulus | 108 GPa (rank: 20th) Poisson ratio | 0.25 (rank: 41st) ultimate tensile strength | 37 MPa (rank: 31st) refractive index | 1.00205 sound speed | 3700 m/s (rank: 24th) thermal expansion | 3.02×10^-5 K^(-1) (rank: 8th) thermal conductivity | 120 W/(m K) (rank: 15th) (properties at standard conditions)
Electromagnetic properties
electrical type | conductor resistivity | 5.9×10^-8 Ω m (ohm meters) electrical conductivity | 1.7×10^7 S/m (siemens per meter) magnetic type | diamagnetic volume magnetic susceptibility | -1.58×10^-5 mass magnetic susceptibility | -2.21×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -1.45×10^-10 m^3/mol (cubic meters per mole) work function | (3.63 to 4.9) eV threshold frequency | (8.777×10^14 to 1.185×10^15) Hz (hertz) superconducting point | 0.85 K (kelvins) color | (slate gray) refractive index | 1.00205 (work function range from 2 different crystalline orientations)
Reactivity
valence | 2 electronegativity | 1.65 electron affinity | 0 kJ/mol (kilojoules per mole) first ionization energy | 906.4 kJ/mol (kilojoules per mole) ionization energies | 906.4 kJ/mol | 1733.3 kJ/mol | 3833 kJ/mol | 5731 kJ/mol | 7970 kJ/mol | 10400 kJ/mol | 12900 kJ/mol | 16800 kJ/mol | 19600 kJ/mol | 23000 kJ/mol | 26400 kJ/mol | 29990 kJ/mol | 40490 kJ/mol | 43800 kJ/mol | 47300 kJ/mol | 52300 kJ/mol | 55900 kJ/mol | 59700 kJ/mol | 67300 kJ/mol | 71200 kJ/mol | 179100 kJ/mol
Reactivity
Atomic properties
term symbol | ^1S_0 atomic radius | 135 pm covalent radius | 122 pm van der Waals radius | 139 pm (electronic ground state properties)
(neutral zinc atomic spectrum)
Abundances
universe abundance | 3×10^-5 mass% (rank: 25th) solar abundance | 2×10^-4 mass% (rank: 23rd) meteorite abundance | 0.018 mass% (rank: 20th) crust abundance | 0.0078 mass% (rank: 23rd) ocean abundance | 5×10^-7 mass% (rank: 23rd) human abundance | 0.0033 mass% (rank: 15th) universe molar abundance | 6×10^-7 mol% (rank: 25th) solar molar abundance | 3×10^-6 mol% (rank: 24th) meteorite molar abundance | 0.0044 mol% (rank: 21st) ocean molar abundance | 4.7×10^-8 mol% (rank: 35th) crust molar abundance | 0.0025 mol% (rank: 25th) human molar abundance | 3.2×10^-4 mol% (rank: 15th)
Nuclear properties
half-life | (stable) stable isotopes | Zn-64 (48.63%) | Zn-66 (27.9%) | Zn-68 (18.75%) | Zn-67 (4.1%) | Zn-70 (0.62%) nuclear spin | Zn-54: 0^+ | Zn-55: 5/2^- | Zn-56: 0^+ | Zn-57: 7/2^- | Zn-58: 0^+ | Zn-59: 3/2^- | Zn-60: 0^+ | Zn-61: 3/2^- | Zn-62: 0^+ | Zn-63: 3/2^- | Zn-64: 0^+ | Zn-65: 5/2^- | Zn-66: 0^+ | Zn-67: 5/2^- | Zn-68: 0^+ | Zn-69: 1/2^- | Zn-70: 0^+ | Zn-71: 1/2^- | Zn-72: 0^+ | Zn-73: 1/2^- | Zn-74: 0^+ | Zn-75: 7/2^+ | Zn-76: 0^+ | Zn-77: 7/2^+ | Zn-78: 0^+ | Zn-79: 9/2^+ | Zn-80: 0^+ | Zn-81: 5/2^+ | Zn-82: 0^+ | Zn-83: 5/2^+ unstable isotopes | Zn-65 (243.66 days) | Zn-72 (46.4 h) | Zn-62 (9.1861 h) | Zn-69 (56.33 min) | Zn-63 (38.47 min) | Zn-71 (147 s) | Zn-60 (143 s) | Zn-74 (95.6 s) | Zn-61 (89.1 s) | Zn-73 (23.5 s) | Zn-75 (10.2 s) | Zn-76 (5.7 s) | Zn-77 (2.08 s) | Zn-78 (1.47 s) | Zn-79 (0.995 s) | Zn-80 (540 ms) | Zn-81 (290 ms) | Zn-59 (182 ms) | Zn-58 (84 ms) | Zn-57 (38 ms) | Zn-55 (20 ms) | Zn-56 (500 ns) | Zn-83 (150 ns) | Zn-82 (150 ns) neutron cross-section | 1.1 b neutron mass absorption | 5.5×10^-4 m^2/kg
Identifiers
CAS number | 7440-66-6 PubChem CID number | 23994