[DOC] [TLE] Deuterium - Wikipedia [PAR] Deuterium is one of two stable isotopes of hydrogen. The nucleus of deuterium, 
called a deuteron,... [DOC] [TLE] Isotopes of hydrogen - Wikipedia [PAR] Hydrogen (H) (relative atomic mass: 1.00794) has three naturally occurring 
isotopes, sometimes denoted 1H, 2H, and 3H. The first two of these are stable 
while 3H has a half-life of 12.32 years. All heavier isotopes are synthetic and 
have a half-life less than one ... The 2H (or hydrogen-2) isotope is usually called 
deuterium, while the 3H (or... [DOC] [TLE] Heavy water - Wikipedia [PAR] Heavy water is a form of water that contains a larger than normal amount of the 
hydrogen ... Deuterium is an isotope of hydrogen whose nucleus comprises both 
a neutron .... more than for heavy-isotope substitution in other chemical elements. [DOC] [TLE] Isotopes of Hydrogen - Boundless [PAR] Deuterium is a hydrogen isotope consisting of one proton, one neutron and one 
electron. ... All heavier isotopes are synthetic and have a half-life less than a ... 
Hydrogen atoms are so reactive that they combine with almost all elements. [DOC] [TLE] Deuterium, Tritium, and Protium - Three Hydrogen Isotopes [PAR] Sep 27, 2013 ... The first and simplest element is hydrogen, H. It is a gas at room temperature. ... 
As can be seen from the numbers, the most important isotope is protium or H-1. ... 
Two atoms of deuterium (sometimes called heavy hydrogen)... [DOC] [TLE] deuterium | chemical isotope | Britannica.com [PAR] Mar 15, 2016 ... Deuterium, (D, or 2H), also called heavy hydrogen, isotope of hydrogen with a ... 
that is the simplest member of the family of chemical elements. [DOC] [TLE] heavy water (D2O) | chemical compound | Britannica.com [PAR] D 2 O water composed of deuterium, the hydrogen isotope with a mass double ... 
a substance composed of the chemical elements hydrogen and oxygen and... [DOC] [TLE] Deuterium - New World Encyclopedia [PAR] 3.1 Lighter element isotopes suspected; 3.2 Deuterium predicted and detected .... 
The amount inferred for normal abundance of this heavy isotope was so small... [DOC] [TLE] The Three Isotopes of Hydrogen - Video & Lesson Transcript | Study ... [PAR] When we are looking at the atomic number of an element in the periodic table, 
we ... for isotopes, this refers to the abundance of that isotope found on the planet
. ... two times heavier than protium, deuterium is also known as 'heavy hydrogen. [DOC] [TLE] What Is Deuterium? - Chemistry - About.com [PAR] Hydrogen Facts - Element 1 or H ... The most common isotope of hydrogen is 
protium, which has one proton and no neutrons. Because deuterium contains a 
neutron, it is more massive or heavier than protium, so it is sometimes called 
heavy... [DOC] [TLE] Deuterium, What is Deuterium, Heavy Hydrogen | Physics ... [PAR] The same elements whose atoms contain the same number of protons but 
different ... Deuterium is a isotope of hydrogen which varies from hydrogen by 
one... [DOC] [TLE] Chemistry Chat -Focusing on the Elements- Heavy Hydrogen [PAR] Chemistry Chat -Focusing on the Elements- Heavy Hydrogen,Chemistry Chat ,
Back Number,Isotope with Its Own Symbol,Atomic Energy and Deuterium... [DOC] [TLE] Lights, Atoms and Nuclei: The Optical Discovery of Deuterium [PAR] element played a transformational role in the developme of nuclear energy and ... 
within a few months. Deuterium, the heavy stable isotope of hydrogen, was. [DOC] [TLE] Isotopes facts, information, pictures | Encyclopedia.com articles ... [PAR] For the stable silver isotope designated as for instance, Ag is the element symbol 
.... Deuterium is sometimes called "heavy hydrogen," and its nucleuswith one... [DOC] [TLE] ATOMS AND ISOTOPES [PAR] The atoms of different isotopes are atoms of the same chemical element; they 
differ in ... This isotope of hydrogen is known as "deuterium" or heavy hydrogen. [DOC] [TLE] Isotopes of Hydrogen-protium-deuterium-tritium - City Collegiate [PAR] Nuclei of the same element having same atomic number but different mass 
number are known ... Heavy water(D2O) consists of deuterium isotope of 
hydrogen. [DOC] [TLE] isotope - The Worlds of David

Question: Deuterium is a heavy isotope of this element
Answer: hydrogen