livermorium vs selenium

livermorium (chemical element) | selenium (chemical element)

Periodic table location

Image

| livermorium | selenium atomic symbol | Lv | Se atomic number | 116 | 34 short electronic configuration | [Rn]7s^25f^146d^107p^4 | [Ar]4s^23d^104p^4 Aufbau diagram | 7p 6d 5f 7s | 4p 3d 4s block | p | p group | 16 | 16 period | 7 | 4 atomic mass | 293 u | 78.971 u half-life | 120 ms | (stable)

| selenium phase at STP | solid melting point | 221 °C boiling point | 685 °C critical temperature | 1766 K critical pressure | 27.2 MPa molar heat of fusion | 5.4 kJ/mol molar heat of vaporization | 26 kJ/mol specific heat at STP | 321.2 J/(kg K) (properties at standard conditions)

| selenium density | 4.819 g/cm^3 liquid density | 3.99 g/cm^3 molar volume | 16.39 cm^3/mol Mohs hardness | 2 (≈ gypsum) Brinell hardness | 736 MPa bulk modulus | 8.3 GPa shear modulus | 3.7 GPa Young's modulus | 10 GPa Poisson ratio | 0.33 refractive index | 1.000895 sound speed | 3350 m/s thermal conductivity | 0.52 W/(m K) (properties at standard conditions)

| selenium magnetic type | diamagnetic volume magnetic susceptibility | -1.93×10^-5 mass magnetic susceptibility | -4×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -3.16×10^-10 m^3/mol (cubic meters per mole) work function | 5.9 eV (Polycrystalline) threshold frequency | 1.427×10^15 Hz (hertz) color | (gray) refractive index | 1.000895

| livermorium | selenium valence | (unknown) | 6 electronegativity | | 2.55 electron affinity | (unknown) | 195 kJ/mol (kilojoules per mole) first ionization energy | | 941 kJ/mol (kilojoules per mole) ionization energies | {} | 941 kJ/mol | 2045 kJ/mol | 2973.7 kJ/mol | 4144 kJ/mol | 6590 kJ/mol | 7880 kJ/mol | 14990 kJ/mol

| livermorium | selenium term symbol | ^3P_2 | ^3P_2 atomic radius | | 115 pm covalent radius | (unknown) | 120 pm van der Waals radius | (unknown) | 190 pm (electronic ground state properties)

| livermorium | selenium universe abundance | | 3×10^-6 mass% solar abundance | 0 mass% | meteorite abundance | 0 mass% | 0.0013 mass% crust abundance | 0 mass% | 5×10^-6 mass% ocean abundance | 0 mass% | 4.5×10^-8 mass% human abundance | 0 mass% | 5×10^-6 mass% universe molar abundance | | 5×10^-8 mol% solar molar abundance | 0 mol% | meteorite molar abundance | 0 mol% | 2.9×10^-4 mol% ocean molar abundance | 0 mol% | 3.5×10^-9 mol% crust molar abundance | 0 mol% | 9.9×10^-7 mol% human molar abundance | 0 mol% | 4×10^-7 mol%

| livermorium | selenium half-life | 120 ms | (stable) specific radioactivity | 1.188×10^10 TBq/g | decay mode | alpha emission | stable isotopes | | Se-80 (49.61%) | Se-78 (23.77%) | Se-76 (9.37%) | Se-77 (7.63%) | Se-74 (0.89%) nuclear spin | Lv-289: 5/2^+ | Lv-290: 0^+ | Lv-292: 0^+ | Se-65: 3/2^- | Se-66: 0^+ | Se-67: 5/2^- | Se-68: 0^+ | Se-70: 0^+ | Se-71: 5/2^- | Se-72: 0^+ | Se-73: 9/2^+ | Se-74: 0^+ | Se-75: 5/2^+ | Se-76: 0^+ | Se-77: 1/2^- | Se-78: 0^+ | Se-79: 7/2^+ | Se-80: 0^+ | Se-81: 1/2^- | Se-82: 0^+ | Se-83: 9/2^+ | Se-84: 0^+ | Se-85: 5/2^+ | Se-86: 0^+ | Se-87: 5/2^+ | Se-88: 0^+ | Se-89: 5/2^+ | Se-90: 0^+ | Se-91: 1/2^+ | Se-92: 0^+ | Se-93: 1/2^+ | Se-94: 0^+ unstable isotopes | Lv-292 (18 ms) | Lv-290 (15 ms) | Lv-289 (10 ms) | Lv-291 (6.3 ms) | Se-79 (0.295 Myr) | Se-75 (119.79 days) | Se-72 (8.4 days) | Se-73 (7.14 h) | Se-70 (41.17 min) | Se-83 (22.33 min) | Se-81 (18.45 min) | Se-71 (4.73 min) | Se-84 (186 s) | Se-68 (35.5 s) | Se-85 (31.7 s) | Se-69 (27.4 s) | Se-86 (15.3 s) | Se-87 (5.5 s) | Se-88 (1.53 s) | Se-89 (410 ms) | Se-91 (270 ms) | Se-67 (136 ms) | Se-65 (50 ms) | Se-66 (33 ms) | Se-92 (300 ns) | Se-90 (300 ns) | Se-94 (150 ns) | Se-93 (150 ns) neutron cross-section | (unknown) | 11.7 b neutron mass absorption | (unknown) | 0.0056 m^2/kg

| livermorium | selenium CAS number | 54100-71-9 | 7782-49-2