Talk:Isotopes of krypton

message: Nothing had been mentioned here about krypton-86 and the length of the meter. 
Even if this definition of the length of the meter has been superseded, then presenting something about it is of historical interest.
See: Meter#standard_wavelength_of_krypton-86_emission
Furthermore, the definition of the meter in terms of 1,650,763.73 wavelengths of the orange-red spectral emission of krypton-86 is still a practical standard for the length of the meter.
Furthermore, nothing was said about why krypton-86 instead of Kr-78, Kr-80, Kr-82, Kr-83, or Kr-84, especially since krypton-84 is the most common isotope - 57 percent of the total atoms of krypton. Please explain.98.67.96.19 (talk) 14:47, 11 August 2012 (UTC)
thread_title:  Nothing had been here about krypton-86 and the length of the meter 

message: "Krypton is highly volatile when it is near surface waters"
Really, krypton cannot be "volatile" since it is a gas already.
Volatility refers to liquids that can change into gases, readily. See the article on Volatility (chemistry), where volitality is specifically dedined as a property of liquids, and it also refers to the sublimation of solids such as solid carbon dioxide.98.67.96.19 (talk) 14:54, 11 August 2012 (UTC)
thread_title:  What on earth does this mean? 

message: Atmospheric reactions?? Unless otherwise specified, and atmospheric reaction would be a chemical reaction, and that is impossible to produce different isotopes.
It is possible that you mean nuclear reactions with incoming cosmic rays - but you have to state cosmic rays.
Possible nuclear reactions in the atmosphere that could produce radioactive isotopes of krypton:
1. Xenon nuclei react with cosmic rays and are thence split, producing nuclei of krypton and other elements.
2. Neutrons from cosmic rays react with krypton nuclei, producing directly different isotopes of krypton.
3. Protons in cosmic rays (which are quite common) react with krypton nuclei, producing short-lived isotopes of rubidium. These can then undergo radioactive decay by releasing beta particles and thence producing a different isotope of krypton.
To summarize, to write about this subject without even mentioning cosmic rays was something really lacking.98.67.96.19 (talk) 15:32, 11 August 2012 (UTC)
thread_title:  Atmospheric reactions?? 

message: These is a long article in the Wikipedia about nuclear weapons testing, and that should have been included in this article as a wikilink.
Likewise, there is an article in the Wikipedia about nuclear reprocessing98.67.96.19 (talk) 15:50, 11 August 2012 (UTC)
thread_title:  Nuclear weapons testing and nuclear reprocessing 

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