oxygen vs nitrogen

oxygen (chemical element) | nitrogen (chemical element)

Periodic table location

Images

| oxygen | nitrogen atomic symbol | O | N atomic number | 8 | 7 short electronic configuration | [He]2s^22p^4 | [He]2s^22p^3 Aufbau diagram | 2p 2s | 2p 2s block | p | p group | 16 | 15 period | 2 | 2 atomic mass | 15.999 u | 14.007 u half-life | (stable) | (stable)

| oxygen | nitrogen phase at STP | gas | gas melting point | -218.3 °C | -210.1 °C boiling point | -182.9 °C | -195.79 °C critical temperature | 154.59 K | 126.21 K critical pressure | 5.043 MPa | 3.39 MPa molar heat of fusion | 0.222 kJ/mol | 0.36 kJ/mol molar heat of vaporization | 3.41 kJ/mol | 2.79 kJ/mol specific heat at STP | 919 J/(kg K) | 1040 J/(kg K) adiabatic index | 7/5 | 7/5 (properties at standard conditions)

| oxygen | nitrogen density | 0.001429 g/cm^3 | 0.001251 g/cm^3 molar volume | 11200 cm^3/mol | 11200 cm^3/mol refractive index | 1.000271 | 1.000298 sound speed | 317.5 m/s | 333.6 m/s thermal conductivity | 0.02658 W/(m K) | 0.02583 W/(m K) (properties at standard conditions)

| oxygen | nitrogen magnetic type | paramagnetic | diamagnetic volume magnetic susceptibility | 1.90772×10^-6 | -6.8×10^-9 mass magnetic susceptibility | 1.335×10^-6 m^3/kg (cubic meters per kilogram) | -5.4×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | 4.27184×10^-8 m^3/mol (cubic meters per mole) | -1.5×10^-10 m^3/mol (cubic meters per mole) color | (colorless) | (colorless) refractive index | 1.000271 | 1.000298

| oxygen | nitrogen valence | 2 | 3 electronegativity | 3.44 | 3.04 electron affinity | 141 kJ/mol (kilojoules per mole) | 7 kJ/mol (kilojoules per mole) first ionization energy | 1313.9 kJ/mol (kilojoules per mole) | 1402.3 kJ/mol (kilojoules per mole) ionization energies | 1313.9 kJ/mol | 3388.3 kJ/mol | 5300.5 kJ/mol | 7469.2 kJ/mol | 10989.5 kJ/mol | 13326.5 kJ/mol | 71330 kJ/mol | 84078 kJ/mol | 1402.3 kJ/mol | 2856 kJ/mol | 4578.1 kJ/mol | 7475 kJ/mol | 9444.9 kJ/mol | 53266.6 kJ/mol | 64360 kJ/mol

Reactivity

| oxygen | nitrogen term symbol | ^3P_2 | ^4S_(3/2) atomic radius | 60 pm | 65 pm covalent radius | 66 pm | 71 pm van der Waals radius | 152 pm | 155 pm (electronic ground state properties)

| oxygen | nitrogen universe abundance | 1 mass% | 0.1 mass% solar abundance | 0.9 mass% | 0.1 mass% meteorite abundance | 40 mass% | 0.14 mass% crust abundance | 46 mass% | 0.002 mass% ocean abundance | 86 mass% | 5×10^-5 mass% human abundance | 61 mass% | 2.6 mass% universe molar abundance | 0.08 mol% | 0.009 mol% solar molar abundance | 0.07 mol% | 0.009 mol% meteorite molar abundance | 48 mol% | 0.14 mol% ocean molar abundance | 33 mol% | 2.2×10^-5 mol% crust molar abundance | 60 mol% | 0.0029 mol% human molar abundance | 24 mol% | 1.2 mol%

| oxygen | nitrogen half-life | (stable) | (stable) stable isotopes | O-16 (99.762%) | O-18 (0.2%) | O-17 (3.8×10^-4) | N-14 (99.634%) | N-15 (0.366%) nuclear spin | O-12: 0^+ | O-13: 3/2^- | O-14: 0^+ | O-15: 1/2^- | O-16: 0^+ | O-17: 5/2^+ | O-18: 0^+ | O-19: 5/2^+ | O-20: 0^+ | O-21: 5/2^+ | O-22: 0^+ | O-23: 1/2^+ | O-24: 0^+ | O-25: 3/2^+ | O-26: 0^+ | O-27: 3/2^+ | O-28: 0^+ | N-10: 2^- | N-11: 1/2^+ | N-12: 1^+ | N-13: 1/2^- | N-14: 1^+ | N-15: 1/2^- | N-16: 2^- | N-17: 1/2^- | N-18: 1^- | N-19: 1/2^- | N-21: 1/2^- | N-23: 1/2^- | N-25: 1/2^- unstable isotopes | O-15 (122.24 s) | O-14 (70.606 s) | O-19 (26.88 s) | O-20 (13.51 s) | O-21 (3.42 s) | O-22 (2.25 s) | O-23 (82 ms) | O-24 (65 ms) | O-13 (8.58 ms) | O-27 (260 ns) | O-28 (100 ns) | O-25 (50 ns) | O-26 (40 ns) | O-12 (1.14 zs) | N-13 (9.965 min) | N-16 (7.13 s) | N-17 (4.173 s) | N-18 (624 ms) | N-19 (271 ms) | N-20 (130 ms) | N-21 (85 ms) | N-22 (24 ms) | N-23 (14.5 ms) | N-12 (11 ms) | N-25 (260 ns) | N-24 (52 ns) | N-11 (0.59 zs) | N-10 (0.2 zs) neutron cross-section | 2.8×10^-4 b | 1.91 b neutron mass absorption | 1×10^-6 m^2/kg | 0.0048 m^2/kg

| oxygen | nitrogen CAS number | 7782-44-7 | 7727-37-9 PubChem CID number | 977 | 947