Hydrogen. Hydrogen-1 . Hydrogen 1 . The first chemical element in the periodic table. It has the atomic symbol H, atomic number 1, and atomic weight [1.00784; 1.00811]. It exists, under normal conditions, as a colorless, odorless, tasteless, diatomic gas. Hydrogen ions are PROTONS. Besides the common H1 isotope, hydrogen exists as the stable isotope DEUTERIUM and the unstable, radioactive isotope TRITIUM. . 0.49
Bicarbonates. Bicarbonate Ion . Carbonic Acid Ions . Hydrogen Carbonate . Carbonate, Hydrogen . Carbonates, Hydrogen . Ions, Bicarbonate . Ions, Carbonic Acid . Bicarbonate Ions . Hydrogen Carbonates . Inorganic salts that contain the -HCO3 radical. They are an important factor in determining the pH of the blood and the concentration of bicarbonate ions is regulated by the kidney. Levels in the blood are an index of the alkali reserve or buffering capacity. . 0.47