tellurium vs arsenic vs boron

tellurium (chemical element) | arsenic (chemical element) | boron (chemical element)

Periodic table location

Images

| tellurium | arsenic | boron atomic symbol | Te | As | B atomic number | 52 | 33 | 5 short electronic configuration | [Kr]5s^24d^105p^4 | [Ar]4s^23d^104p^3 | [He]2s^22p^1 Aufbau diagram | 5p 4d 5s | 4p 3d 4s | 2p 2s block | p | p | p group | 16 | 15 | 13 period | 5 | 4 | 2 atomic mass | 127.6 u | 74.921595 u | 10.81 u half-life | (stable) | (stable) | (stable)

| tellurium | arsenic | boron phase at STP | solid | solid | solid melting point | 449.51 °C | 817 °C | 2075 °C boiling point | 988 °C | 614 °C | 4000 °C molar heat of fusion | 17.5 kJ/mol | 27.7 kJ/mol | 50 kJ/mol molar heat of vaporization | 48 kJ/mol | 32.4 kJ/mol | 507 kJ/mol specific heat at STP | 201 J/(kg K) | 328 J/(kg K) | 1030 J/(kg K) (properties at standard conditions)

| tellurium | arsenic | boron density | 6.24 g/cm^3 | 5.727 g/cm^3 | 2.46 g/cm^3 liquid density | 5.7 g/cm^3 | 5.22 g/cm^3 | 2.08 g/cm^3 molar volume | 20.45 cm^3/mol | 13.08 cm^3/mol | 4.394 cm^3/mol Mohs hardness | 2.25 (between gypsum and calcite) | 3.5 (between calcite and fluorite) | 9.3 (between corundum and diamond) Vickers hardness | | 1510 MPa | 49000 MPa Brinell hardness | 180 MPa | 1440 MPa | bulk modulus | 65 GPa | 22 GPa | 320 GPa shear modulus | 16 GPa | | Young's modulus | 43 GPa | 8 GPa | ultimate tensile strength | 11 MPa | | 2 MPa refractive index | 1.000991 | 1.001552 | sound speed | 2610 m/s | | 16200 m/s thermal expansion | | | 6×10^-6 K^(-1) thermal conductivity | 3 W/(m K) | 50 W/(m K) | 27 W/(m K) (properties at standard conditions)

| tellurium | arsenic | boron electrical type | semiconductor | conductor | insulator resistivity | 1×10^-4 Ω m (ohm meters) | 3×10^-7 Ω m (ohm meters) | 10000 Ω m (ohm meters) electrical conductivity | 10000 S/m (siemens per meter) | 3.3×10^6 S/m (siemens per meter) | 1×10^-4 S/m (siemens per meter) magnetic type | diamagnetic | diamagnetic | diamagnetic volume magnetic susceptibility | -2.43×10^-5 | -2.23×10^-5 | -2.14×10^-5 mass magnetic susceptibility | -3.9×10^-9 m^3/kg (cubic meters per kilogram) | -3.9×10^-9 m^3/kg (cubic meters per kilogram) | -8.7×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -4.98×10^-10 m^3/mol (cubic meters per mole) | -2.92×10^-10 m^3/mol (cubic meters per mole) | -9.41×10^-11 m^3/mol (cubic meters per mole) work function | 4.95 eV (Polycrystalline) | 3.75 eV (Polycrystalline) | 4.45 eV (Polycrystalline) threshold frequency | 1.197×10^15 Hz (hertz) | 9.067×10^14 Hz (hertz) | 1.076×10^15 Hz (hertz) color | (silver) | (silver) | (black) refractive index | 1.000991 | 1.001552 |

| tellurium | arsenic | boron valence | 6 | 5 | 3 electronegativity | 2.1 | 2.18 | 2.04 electron affinity | 190.2 kJ/mol (kilojoules per mole) | 78 kJ/mol (kilojoules per mole) | 26.7 kJ/mol (kilojoules per mole) first ionization energy | 869.3 kJ/mol (kilojoules per mole) | 947 kJ/mol (kilojoules per mole) | 800.6 kJ/mol (kilojoules per mole) ionization energies | 869.3 kJ/mol | 1790 kJ/mol | 2698 kJ/mol | 3610 kJ/mol | 5668 kJ/mol | 6820 kJ/mol | 13200 kJ/mol | 947 kJ/mol | 1798 kJ/mol | 2735 kJ/mol | 4837 kJ/mol | 6043 kJ/mol | 12310 kJ/mol | 800.6 kJ/mol | 2427.1 kJ/mol | 3659.7 kJ/mol | 25025.8 kJ/mol | 32826.7 kJ/mol

Reactivity

| tellurium | arsenic | boron term symbol | ^3P_2 | ^4S_(3/2) | ^2P_(1/2) atomic radius | 140 pm | 115 pm | 85 pm covalent radius | 138 pm | 119 pm | 84 pm van der Waals radius | 206 pm | 185 pm | (electronic ground state properties)

| tellurium | arsenic | boron universe abundance | 9×10^-7 mass% | 8×10^-7 mass% | 1×10^-7 mass% solar abundance | | | 2×10^-7 mass% meteorite abundance | 2.1×10^-4 mass% | 1.8×10^-4 mass% | 1.6×10^-4 mass% crust abundance | 9.9×10^-8 mass% | 2.1×10^-4 mass% | 8.6×10^-4 mass% ocean abundance | | 2.3×10^-7 mass% | 4.4×10^-4 mass% human abundance | | 5×10^-6 mass% | 7×10^-5 mass% universe molar abundance | 9×10^-9 mol% | 1×10^-8 mol% | 1×10^-8 mol% solar molar abundance | | | 2×10^-8 mol% meteorite molar abundance | 3×10^-5 mol% | 4.6×10^-5 mol% | 3×10^-4 mol% ocean molar abundance | | 1.9×10^-8 mol% | 2.5×10^-4 mol% crust molar abundance | 2×10^-8 mol% | 5.8×10^-5 mol% | 0.0017 mol% human molar abundance | | 4×10^-7 mol% | 4.1×10^-5 mol%