Dihydrogen

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Properties Simple | Detailed

Formula H2
IUPAC Name molecular hydrogen
Molecular Mass 2.016 g·mol−1
Heat of Formation -133.9 ± 16.7 kJ·mol−1
Volume 13.1 Å 3
Surface Area 27.33 Å 2
HOMO Energy -15.03 ± 0.55 eV
LUMO Energy 7.04 ± eV
Point Group Symmetry D*h
Synonyms
  • atomic hydrogen
  • etnam h hydrogen atom
  • h2
  • hydrogen atom
  • hydrogen, atomic
  • monoatomic hydrogen
CAS Number(s)
  • 12385-13-6
InChIKey UFHFLCQGNIYNRP-UHFFFAOYSA-N
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Elements H