primary decay
1Decay heat — RTG pellet glowing red because of the heat generated by the radioactive decay of plutonium 238 dioxide, after a thermal isolation test. Decay heat is the heat released as a result of radioactive decay. This is when the radiation interacts with… …
2Primary production — For other uses, see Primary production (economics). Global oceanic and terrestrial photoautotroph abundance, from September 1997 to August 2000. As an estimate of autotroph biomass, it is only a rough indicator of primary production potential,… …
3Urban decay — is a process by which a city, or a part of a city, falls into a state of disrepair. It is characterized by depopulation, economic restructuring, property abandonment, high unemployment, fragmented families, political disenfranchisement, crime,… …
4Orbital decay — is the process of prolonged reduction in the altitude of a satellite s orbit. This can be due to drag produced by an atmosphere due to frequent collisions between the satellite and surrounding air molecules. The drag experienced by the object is… …
5Mitochondrial decay — is one major cause of aging, leading to the subsequent death in humans. The mitochondria are the power producing organelles found in every cell of every organ. Their primary function is to generate ATP through various energy cycles that involve… …
6Protactinium — thorium ← protactinium → uranium Pr ↑ Pa ↓ …
7Isotopes of neptunium — Neptunium (Np) is an artificial element, and thus a standard atomic mass cannot be given. Like all artificial elements, it has no stable isotopes. The first isotope to be synthesized was 239Np in 1940, produced by bombarding 238U with neutrons to …
8Neptunium — uranium ← neptunium → plutonium Pm ↑ Np ↓ (Uqt) …
9Isotopes of neodymium — Naturally occurring neodymium (Nd) is composed of 5 stable isotopes, 142Nd, 143Nd, 145Nd, 146Nd and 148Nd, with 142Nd being the most abundant (27.2% natural abundance), and 2 radioisotopes, 144Nd and 150Nd. In all, 33 radioisotopes of Neodymium… …
10Cobalt — This article is about the metal. For other uses, see Cobalt (disambiguation). iron ← cobalt → nickel ↑ Co ↓ Rh …
