name of sodium vs silicon

sodium (chemical element) | silicon (chemical element)

Periodic table location

Images

| sodium | silicon atomic symbol | Na | Si atomic number | 11 | 14 short electronic configuration | [Ne]3s^1 | [Ne]3s^23p^2 Aufbau diagram | 3s | 3p 3s block | s | p group | 1 | 14 period | 3 | 3 atomic mass | 22.98976928 u | 28.085 u half-life | (stable) | (stable)

| sodium | silicon phase at STP | solid | solid melting point | 97.72 °C | 1414 °C boiling point | 883 °C | 2900 °C critical temperature | 2573 K | critical pressure | 35 MPa | molar heat of fusion | 2.6 kJ/mol | 50.2 kJ/mol molar heat of vaporization | 97.7 kJ/mol | 359 kJ/mol specific heat at STP | 1230 J/(kg K) | 710 J/(kg K) (properties at standard conditions)

| sodium | silicon density | 0.968 g/cm^3 | 2.33 g/cm^3 liquid density | 0.927 g/cm^3 | 2.57 g/cm^3 molar volume | 23.7 cm^3/mol | 12.05 cm^3/mol Mohs hardness | 0.5 (between talc and gypsum) | 6.5 (between microcline and quartz) Vickers hardness | | 9630 MPa Brinell hardness | 0.69 MPa | bulk modulus | 6.3 GPa | 100 GPa shear modulus | 3.3 GPa | Young's modulus | 10 GPa | 47 GPa ultimate tensile strength | 10 MPa | sound speed | 3200 m/s | 2200 m/s thermal expansion | 7.1×10^-5 K^(-1) | 2.6×10^-6 K^(-1) thermal conductivity | 140 W/(m K) | 150 W/(m K) (properties at standard conditions)

| sodium | silicon electrical type | conductor | semiconductor resistivity | 4.7×10^-8 Ω m (ohm meters) | 0.001 Ω m (ohm meters) electrical conductivity | 2.1×10^7 S/m (siemens per meter) | 1000 S/m (siemens per meter) magnetic type | paramagnetic | diamagnetic volume magnetic susceptibility | 8.5×10^-6 | -3.73×10^-6 mass magnetic susceptibility | 8.8×10^-9 m^3/kg (cubic meters per kilogram) | -1.6×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | 2×10^-10 m^3/mol (cubic meters per mole) | -4.49×10^-11 m^3/mol (cubic meters per mole) work function | 2.36 eV (Polycrystalline) | (4.6 to 4.91) eV threshold frequency | 5.706×10^14 Hz (hertz) | (1.112×10^15 to 1.187×10^15) Hz (hertz) color | (silver) | (gray)

| sodium | silicon valence | 1 | 4 electronegativity | 0.93 | 1.9 electron affinity | 52.8 kJ/mol (kilojoules per mole) | 133.6 kJ/mol (kilojoules per mole) first ionization energy | 495.8 kJ/mol (kilojoules per mole) | 786.5 kJ/mol (kilojoules per mole) ionization energies | 495.8 kJ/mol | 4562 kJ/mol | 6910.3 kJ/mol | 9543 kJ/mol | 13354 kJ/mol | 16613 kJ/mol | 20117 kJ/mol | 25496 kJ/mol | 28932 kJ/mol | 141362 kJ/mol | 786.5 kJ/mol | 1577.1 kJ/mol | 3231.6 kJ/mol | 4355.5 kJ/mol | 16091 kJ/mol | 19805 kJ/mol | 23780 kJ/mol | 29287 kJ/mol | 33878 kJ/mol | 38726 kJ/mol

Reactivity

| sodium | silicon term symbol | ^2S_(1/2) | ^3P_0 atomic radius | 180 pm | 110 pm covalent radius | 166 pm | 111 pm van der Waals radius | 227 pm | 210 pm (electronic ground state properties)

| sodium | silicon universe abundance | 0.002 mass% | 0.07 mass% solar abundance | 0.004 mass% | 0.09 mass% meteorite abundance | 0.55 mass% | 14 mass% crust abundance | 2.3 mass% | 27 mass% ocean abundance | 1.1 mass% | 1×10^-4 mass% human abundance | 0.14 mass% | 0.026 mass% universe molar abundance | 1×10^-4 mol% | 0.003 mol% solar molar abundance | 2×10^-4 mol% | 0.004 mol% meteorite molar abundance | 0.48 mol% | 10 mol% ocean molar abundance | 0.3 mol% | 2.2×10^-5 mol% crust molar abundance | 2.1 mol% | 20 mol% human molar abundance | 0.038 mol% | 0.0058 mol%

| sodium | silicon half-life | (stable) | (stable) stable isotopes | Na-23 (100%) | Si-28 (92.23%) | Si-29 (4.683%) | Si-30 (3.087%) nuclear spin | Na-18: 1^- | Na-19: 5/2^+ | Na-20: 2^+ | Na-21: 3/2^+ | Na-22: 3^+ | Na-23: 3/2^+ | Na-24: 4^+ | Na-25: 5/2^+ | Na-26: 3^+ | Na-27: 5/2^+ | Na-28: 1^+ | Na-29: 3/2^+ | Na-30: 2^+ | Na-31: 3/2^+ | Na-33: 3/2^+ | Na-34: 1^+ | Na-35: 3/2^+ | Na-37: 3/2^+ | Si-22: 0^+ | Si-23: 5/2^+ | Si-24: 0^+ | Si-25: 5/2^+ | Si-26: 0^+ | Si-27: 5/2^+ | Si-28: 0^+ | Si-29: 1/2^+ | Si-30: 0^+ | Si-31: 3/2^+ | Si-32: 0^+ | Si-33: 3/2^+ | Si-34: 0^+ | Si-35: 7/2^- | Si-36: 0^+ | Si-37: 7/2^- | Si-38: 0^+ | Si-39: 7/2^- | Si-40: 0^+ | Si-41: 7/2^- | Si-42: 0^+ | Si-43: 3/2^- | Si-44: 0^+ unstable isotopes | Na-22 (2.6027 yr) | Na-24 (14.997 h) | Na-25 (59.1 s) | Na-21 (22.49 s) | Na-26 (1.077 s) | Na-20 (447.9 ms) | Na-27 (301 ms) | Na-30 (48.4 ms) | Na-29 (44.9 ms) | Na-28 (30.5 ms) | Na-31 (17 ms) | Na-32 (13.2 ms) | Na-33 (8 ms) | Na-34 (5.5 ms) | Na-35 (1.5 ms) | Na-36 (180 ns) | Na-37 (60 ns) | Na-19 (40 ns) | Na-18 (1.3 zs) | Si-32 (153 yr) | Si-31 (157.3 min) | Si-33 (6.11 s) | Si-27 (4.16 s) | Si-34 (2.77 s) | Si-26 (2.234 s) | Si-35 (780 ms) | Si-36 (450 ms) | Si-25 (220 ms) | Si-24 (140 ms) | Si-37 (90 ms) | Si-39 (47.5 ms) | Si-23 (42.3 ms) | Si-40 (33 ms) | Si-22 (29 ms) | Si-41 (20 ms) | Si-42 (12.5 ms) | Si-38 (1 µs) | Si-44 (360 ns) | Si-43 (60 ns) neutron cross-section | 0.53 b | 0.166 b neutron mass absorption | 7×10^-4 m^2/kg | 2×10^-4 m^2/kg

| sodium | silicon CAS number | 7440-23-5 | 7440-21-3 PubChem CID number | 5360545 | 5461123