enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Isotopes of neon - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_neon

    The abundances of the naturally occurring isotopes of neon. Neon (10 Ne) possesses three stable isotopes: 20 Ne, 21 Ne, and 22 Ne. In addition, 17 radioactive isotopes have been discovered, ranging from 15 Ne to 34 Ne, all short-lived. The longest-lived is 24 Ne with a half-life of 3.38(2) min. All others are under a minute, most under a second.

  3. Composition of the human body - Wikipedia

    en.wikipedia.org/wiki/Composition_of_the_human_body

    All 11 are necessary for life. The remaining elements are trace elements, of which more than a dozen are thought on the basis of good evidence to be necessary for life. [1] All of the mass of the trace elements put together (less than 10 grams for a human body) do not add up to the body mass of magnesium, the least common of the 11 non-trace ...

  4. Noble gas compound - Wikipedia

    en.wikipedia.org/wiki/Noble_gas_compound

    Krypton compounds with other than Kr–F bonds (compounds with atoms other than fluorine) have also been described. KrF 2 reacts with B(OTeF 5 ) 3 to produce the unstable compound, Kr(OTeF 5 ) 2 , with a krypton- oxygen bond.

  5. Oxygen - Wikipedia

    en.wikipedia.org/wiki/Oxygen

    The Earth's mantle, of much larger mass than the crust, is largely composed of silicates of magnesium and iron. Water-soluble silicates in the form of Na 4 SiO 4, Na 2 SiO 3, and Na 2 Si 2 O 5 are used as detergents and adhesives. [130] Oxygen also acts as a ligand for transition metals, forming transition metal dioxygen complexes, which ...

  6. Blood - Wikipedia

    en.wikipedia.org/wiki/Blood

    Hemoglobin has an oxygen binding capacity between 1.36 and 1.40 ml O 2 per gram hemoglobin, [23] which increases the total blood oxygen capacity seventyfold, [24] compared to if oxygen solely were carried by its solubility of 0.03 ml O 2 per liter blood per mm Hg partial pressure of oxygen (about 100 mm Hg in arteries).

  7. Neon - Wikipedia

    en.wikipedia.org/wiki/Neon

    Neon is a colorless, odorless, inert monatomic gas under standard conditions, with approximately two-thirds the density of air. Neon was discovered in 1898 alongside krypton and xenon, identified as one of the three remaining rare inert elements in dry air after the removal of nitrogen, oxygen, argon, and carbon dioxide.

  8. Atomic mass - Wikipedia

    en.wikipedia.org/wiki/Atomic_mass

    For non-mononuclidic elements that have more than one common isotope, the numerical difference in relative atomic mass (atomic weight) from even the most common relative isotopic mass, can be half a mass unit or more (e.g. see the case of chlorine where atomic weight and standard atomic weight are about 35.45). The atomic mass (relative ...

  9. Oxygen-burning process - Wikipedia

    en.wikipedia.org/wiki/Oxygen-burning_process

    As a result, neon burning occurs at lower temperatures than 16 O + 16 O. [9] During neon burning, oxygen and magnesium accumulate in the core of the star. At the onset of oxygen burning, oxygen in the stellar core is plentiful due to the helium-burning process (4 He(2α,γ) 12 C(α,γ) 16 O), carbon-burning process (12 C(12 C,α) 20 Ne, 12 C(α ...