[DOC] [TLE] Deuterium - Wikipedia [PAR] Deuterium is one of two stable isotopes of hydrogen. The nucleus of deuterium, 
called a ... When the neutron was discovered in 1932, this made the nuclear 
structure of ... 13.8 billion years ago, as the basic or primordial ratio of hydrogen-
1 (protium) to ...... Urey created the names protium, deuterium, and tritium in an 
article... [DOC] [TLE] Facts About Hydrogen - Live Science [PAR] Jan 23, 2015 ... The history, properties, sources, uses and isotopes of the element hydrogen. ... 
deuterium, a stable isotope discovered in 1932 by Harold C. Urey; and tritium, ... 
at all; deuterium has one, while tritium has two neutrons, according to ... steam to 
form a mixture of hydrogen and carbon monoxide called syngas,... [DOC] [TLE] The isotope effect: Prediction, discussion, and discovery - arXiv.org [PAR] followed from Bohr's atomic theory of 1913, but it took several years before it ... 
hydrogen isotope deuterium was discovered in 1932. The early development ... 2 
For the he history of isotopy in the period 1910-1915, see Brock (1985, pp. 196-
216), .... That is, he effectively predicted what was later called tritium or hydrogen-
3. [DOC] [TLE] Hydrogen is so cool... metallic hydrogen... Hydrogen is the lightest ... [PAR] Mar 18, 2016 ... Scientists had been producing hydrogen for years before it was ... The second, a 
stable isotope called deuterium, was discovered in 1932. ... The tritium nucleus is 
called the triton; it consists of a proton plus two neutrons. [DOC] [TLE] It's Elemental - The Element Hydrogen [PAR] The Element Hydrogen - Basic Physical and Historical Information. ... Scientists 
had been producing hydrogen for years before it was recognized as an element. 
... Some of the common ones are: water (H2O), ammonia (NH3), methane (CH4), 
table ... The second, a stable isotope called deuterium, was discovered in 1932. [DOC] [TLE] A Hydrogen Isotope of Mass 2 - NIST Page [PAR] Before the publication of this definitive paper on the discovery of deuterium [1,2], 
the existence of a heavy isotope of ... tional mass difference of a possible 
hydrogen isotope 2H ... Within a year, an NBS ... called tritium). .... 39, 164-165 (
1932). [DOC] [TLE] Lights, Atoms and Nuclei: The Optical Discovery of Deuterium [PAR] Eighty years have passed since atomic spectroscopy was used to discover ... 
covered in February 1932. Shortly ... notably, a hydrogen isotope of mass 2 (in 
units of the proton mass) ..... only about 7 kg of tritium in Earth's environment at 
any given time. ... consists of a single proton and neutron, is called the deuteron. 
It. [DOC] [TLE] Info-Science : Fact about Hydrogen [PAR] Scientists had been producing hydrogen for years before it was recognized as an 
element. ... The second, a stable isotope called deuterium, was discovered in 
1932. ... Hydrogen has no neutrons at all; deuterium has one, while tritium has 
two... [DOC] [TLE] Tritium | Earth Sciences Museum - University of Waterloo [PAR] Tritium, a radioisotope of hydrogen with the atomic mass of 3.014, is considered 
... The discovery of tritium in 1932 involved the work of several very eminent 
scientists ... Following the discovery of stable hydrogen-2 (commonly called 
deuterium), ... had been produced in the Berkeley laboratory but never 
recognized before. [DOC] [TLE] Isotopes facts, information, pictures | Encyclopedia.com articles ... [PAR] In 1932, he won the Nobel Prize in physics for his discovery of the neutron. ... 
Such atoms are called isotopes, atoms of the same element having different 
masses. .... Deuterium, designated as 2H, is a stable isotope, whereas tritium3
His ... and therefore when physicists discovered the existence of two hydrogen 
atoms... [DOC] [TLE] An Overview about the Chemical Element Hydrogen | Actforlibraries ... [PAR] The discovery of the element hydrogen is credited to the British scientist Henry 
Cavendish in 1766. However, other scientists had produced the gas before this 
date. ... Unlike

Question: The hydrogen isotope called this was discovered in 1932, 2 years before tritium
Answer: deuterium