isotopic mass
101Natural abundance — In chemistry, natural abundance (NA) refers to the abundance of isotopes of a chemical element as naturally found on a planet. The relative atomic mass (a weighted average) of these isotopes is the atomic weight listed for the element in the… …
102Abiogenic petroleum origin — is a largely abandoned hypothesis that was proposed as an alternative to theory of biological petroleum origin. It was relatively popular in the past, but it went largely forgotten at the end of the 20th century after it failed to predict the… …
103Heavy water — Not to be confused with hard water or tritiated water. Deuterium oxide IUPAC name …
104Giant impact hypothesis — Big splash redirects here. For other uses, see Big Splash (disambiguation). Artist s depiction of the giant impact that is hypothesized to have formed the Moon The giant impact hypothesis proposes that the Moon was created out of the debris left… …
105Isotopes of thorium — Although thorium (Th) has multiple isotopes, none of these isotopes are stable; however, one isotope is relatively stable (232Th). As such, thorium is considered to be mononuclidic. It has a characteristic terrestrial isotopic composition and… …
106Isotopes of lead — Lead (Pb) has four stable isotopes 204Pb, 206Pb, 207Pb, 208Pb and one common radiogenic isotope 202Pb with a half life of 53,000 years. The standard atomic mass is 207.2(1) u. It is the heaviest discovered element to have a stable isotope. (The… …
107Isotopes of palladium — Naturally occurring palladium (Pd) is composed of six isotopes. The most stable radioisotopes are 107Pd with a half life of 6.5 million years, 103Pd with a half life of 17 days, and 100Pd with a half life of 3.63 days. Eighteen other… …
108Isotopes of strontium — The alkali earth metal strontium (Sr) has four stable, naturally occurring isotopes:84Sr (0.56%), 86Sr (9.86%), 87Sr (7.0%) and 88Sr (82.58%). Only 87Sr is radiogenic; it is produced by decay from the radioactive alkali metal 87Rb, which has a… …
109Mars — /mahrz/, n. 1. the ancient Roman god of war and agriculture, identified with the Greek god Ares. 2. Astron. the planet fourth in order from the sun, having a diameter of 4222 miles (6794 km), a mean distance from the sun of 141.6 million miles… …
110Litre — One litre is equivalent to this cube Each side is 10 cm 1 litre water = 1 kilogram water (at 4 °C) The litre (or liter  see spelling differences) is a unit of volume equal to 1 cubic decimetre (dm3), to 1,000 cubic centimetres… …
