# Hydrogen molecule

Chemistry Level pending

Hydrogen is a chemical element with chemical symbol H and atomic number $$1.$$ With an atomic weight of $$1.00794$$ u, hydrogen is the lightest element on the periodic table. Its monatomic form (H) is the most abundant chemical substance in the universe, constituting roughly $$75$$% of all baryonic mass. The above shows the energy change when a hydrogen molecule is formed. Which of the following statements is correct?

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