Enthalpies of formation of gaseous atoms

Atom
DHfo(g) kJ/mol
Atom
DHfo(g) kJ/mol
Atom
DHfo(g) kJ/mol
Actinium
385
Holmium
301
Radium
159
Aluminum
326
Hydrogen
218
Radon
0
Antimony
262
Indium
243
Rhenium
770
Argon
0
Iodine
107
Rhodium
556
Arsenic
302
Iridium
665
Rubidium
86
Astatine
92
Iron
418
Ruthenium
643
Barium
180
Krypton
0
Samarium
205
Beryllium
324
Lanthanum
423
Scandium
378
Bismuth
207
Lead
196
Selenium
227
Boron
573
Lithium
161
Silicon
452
Bromine
112
Lutecium
426
Silver
284
Cadmium
112
Magnesium
148
Sodium
109
Calcium
178
Manganese
281
Strontium
164
Carbon
717
Mercury
61
sulfur
279
Cerium
422
Molybdenum
658
Tantalum
782
Cesium
79
Neodymium
322
Technetium
677
Chlorine
121
Neon
0
Tellurium
197
Chromium
397
Neptunium
439
Terbium
389
Cobalt
425
Nickel
430
Thallium
182
Copper
338
Niobium
726
Thorium
576
Dysprosium
297
Nitrogen
473
Thulium
230
Erbium
318
Osmium
791
Tin
302
Europium
176
Oxygen
249
Titanium
470
Fluorine
79
Palladium
378
Tungsten
849
Francium
92
Phosphorus
315
Uranium
490
Gadolinium
397
Platinum
565
Vanadium
514
Gallium
286
Polonium
144
Xenon
0
Germanium
377
Potassium
90
Ytterbium
150
Gold
366
Praseodymium
355
Ytterium
423
Hafnium
619
Protactinium
527
Zinc
131
Helium
0
Radium
159
Zirconium
609