Deuterium (hydrogen-2, symbol 2H or D, also known as heavy hydrogen) is one of two stable isotopes of hydrogen; the other is protium, or hydrogen-1, 1 H. The deuterium nucleus (deuteron) contains one proton and one neutron, whereas the far more common 1 H has no neutrons.

Hydrogen (1 H) has three naturally occurring isotopes: 1 H, 2 H, and 3 H. 1 H and 2 H are stable, while 3 H has a half-life of 12.33(2) years. [ 3 ] [ nb 1 ] Heavier isotopes also exist; all are synthetic and have a half-life of less than 1 zeptosecond (10 −21 s).

The following table shows the atomic nuclei that are isotonic (same neutron number N = 1) and isobaric (same nucleon number A = 2) with Hydrogen-2. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

6 days ago · Hydrogen - Isotopes, Deuterium, Tritium: By means of the mass spectrograph he had invented, Francis William Aston in 1927 observed that the line for hydrogen corresponded to an atomic weight on the chemical scale of 1.00756.

Under standard conditions, hydrogen is a gas of diatomic molecules with the formula H2, called dihydrogen, or sometimes hydrogen gas, molecular hydrogen, or simply hydrogen. Dihydrogen is colorless, odorless, non-toxic, and highly combustible. Hydrogen gas was first produced artificially in the 17th century by the reaction of acids with metals.

Aug 9, 2000 · There are three isotopes of the element hydrogen: hydrogen, deuterium, and tritium. How do we distinguish between them? They each have one single proton (Z = 1), but differ in the number of their neutrons. Hydrogen has no …

The electrolysis of hydrogen-1 water (H 2 O) in the presence of an alkali results in the formation of hydrogen and oxygen. \[ 2 H_2O_{(l)} \rightarrow 2H_{2(g)} + O_{2(g)} \] In a similar manner the hydrolysis of deuterated water (D 2 O) yields deuterium and oxygen.

The Hydrogen isotope H-2, also known as deuterium, is used in a variety of applications. Deuterium is used extensively in organic chemistry in order to study chemical reactions. It is also used in vitamin research.

Every molecule of water (H 2 O) contains two hydrogen atoms and one oxygen atom. Hydrogen is also found in many rocks and minerals. Its abundance is estimated to be about 1,500 parts per million. That makes hydrogen the tenth most abundant element in the Earth's crust.

Hydrogen-2 or 2 H, also known as both Deuterium and Heavy Hydrogen, is the second stable isotope of hydrogen. It is not very abundant, although it is naturally occurring in nature, with a rarity of ~154 PPM (Parts per Million).