Noun
genus of chiefly tropical American trees having fragrant wood and yielding gum elemi
Source: WordNetA molecule of heavy water has two deuterium atoms in place of the two protium atoms of ordinary "light" water. Source: Internet
Explanation Deuterium is an isotope of hydrogen whose nucleus comprises both a neutron and a proton ; the nucleus of a protium (normal hydrogen) atom consists of just a proton. Source: Internet
It is notable that although most stars, including the Sun, generate energy over most of their lives by fusing hydrogen into heavier elements, such fusion of light hydrogen (protium) has never been successful in the conditions attainable on Earth. Source: Internet
Like the water-cycle in Earth's weather, such heating processes may enrich deuterium with respect to protium. Source: Internet
Nearly all deuterium found in nature was produced in the Big Bang 13.8 billion years ago, as the basic or primordial ratio of hydrogen-1 (protium) to deuterium (about 26 atoms of deuterium per million hydrogen atoms) has its origin from that time. Source: Internet
Since the atomic number of hydrogen is 1, a hydrogen ion has no electrons and corresponds to a bare nucleus, consisting of a proton (and 0 neutrons for the most abundant isotope protium 1 1 yes ). Source: Internet