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HFC-125 is a non-ozone depleting replacement for chlorine- or bromine-containing chemicals such as Halon 1301. Due to its global warming potential (GWP) of 3500 times that of CO₂ and atmospheric lifetime of 29 years, it is included in the list of controlled substances of the Montreal Protocol .
The YouTube channel is now one of the most popular chemistry related channels on all of YouTube. [7] The producers of the videos have received praise from Nobel Laureates, chemistry professors, and the general public, says Professor Poliakoff. [5] Chemistry Nobel Laureate Roald Hoffmann has even offered his praise of the videos, stating they ...
Sir Martyn Poliakoff (born 16 December 1947) [3] is a British chemist known for his work on green chemistry and for being the main presenter on the popular YouTube channel Periodic Videos. [6] The core subjects of his academic work are supercritical fluids , [ 7 ] [ 8 ] infrared spectroscopy and lasers .
The detailed decay mechanism to form the stable daughter nuclide tellurium-125 is a multi-step process that begins with electron capture, which produces a tellurium-125 nucleus in an excited state with a half-life of 1.6 ns. The excited tellurium-125 nucleus may undergo gamma decay, emitting a gamma photon at 35.5 keV, or undergo internal ...
There are 37 artificial radioactive isotopes, the longest-lived of which are 125 Sb, with a half-life of 2.75856 years; 124 Sb, with half-life 60.2 days; and 126 Sb, with half-life 12.35 days. All other isotopes have half-lives less than 4 days, most less than an hour.
Anki (US: / ˈ ɑː ŋ k i /, UK: / ˈ æ ŋ k i /; Japanese:) is a free and open-source flashcard program. It uses techniques from cognitive science such as active recall testing and spaced repetition to aid the user in memorization.
Iodine-125 is a radioactive isotope of iodine that decays by electron capture with a physical half-life of 60.14 days. The biological half-life in normal individuals for iodine (125 I) human albumin has been reported to be approximately 14 days. Its radioactivity is excreted almost exclusively via the kidneys. [1]
This is an accepted version of this page This is the latest accepted revision, reviewed on 4 February 2025. American vlogger and entrepreneur (born 1980) This article is about the American vlogger and entrepreneur. For other people, see Henry Green (disambiguation). Hank Green Green in 2023 Born William Henry Green II (1980-05-05) May 5, 1980 (age 44) Birmingham, Alabama, U.S. Alma mater ...