SYMBOL | N | |
ATOMIC NUMBER | 7 | |
ATOMIC WEIGHT | 14.007 | |
GROUP NUMBER | 15 | |
STANDARD STATE | GAS | |
COLOUR | COLOURLESS | |
DISCOVERED | 1772 DANIEL RUTHERFORD, SCOTLAND | |
ORIGIN OF NAME | FROM THE LATIN NITRUM AND THE GREEK NITRON GENES MEANING NITRE FORMING | |
USES |
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ATOMIC RADIUS | 0.71 * 10-10M | |
COMPOUNDS |
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EFFECTIVE NUCLEAR CHARGE (Slater) | 3.90 | |
DENSITY | 1026 KgM-3(SOLID AT 21K), 880 KgM-3 (LIQUID AT B.P.), 1.2506 KgM-3(GAS AT 273K) | |
MELTING POINT | 63.29 K | |
BOILING POINT | 77.4 K | |
ENTHALPY OF FUSION | 0.720 KJMol-1 | |
ENTHALPY OF VAPOURISATION | 5.577 KJMol-1 | |
ISOTOPES | N-13 (Radioactive), N-14, N-15, N-16 (Radioactive), N-17 | |
ELECTRON CONFIGURATION | 1S22S22P3 | |
FIRST IONISATION ENERGY | 1402.3 KJMol-1 | |
ELECTRON AFFINITY | -7 KJMol-1 | |
SOURCES | THE ATMOSTPHERE | |
GENERAL INFORMATION | NITROGEN MAKES UP 78% BY VOLUME OF THE ATMOSTPHERE AND IS PRODUCED BY THE LIQUIFACTION AND LIQUID DISTILLATION OF AIR. | |