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  2. Radon - Wikipedia

    en.wikipedia.org/wiki/Radon

    Several shortened names were soon suggested for the three emanations: exradio, exthorio, and exactinio in 1904; [57] radon (Ro), thoron (To), and akton or acton (Ao) in 1918; [58] radeon, thoreon, and actineon in 1919, [59] and eventually radon, thoron, and actinon in 1920. [60] (The name radon is not related to that of the Austrian ...

  3. Isotopes of radon - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_radon

    There are 39 known isotopes of radon (86 Rn), from 193 Rn to 231 Rn; all are radioactive.The most stable isotope is 222 Rn with a half-life of 3.8235 days, which decays into 218 Po

  4. Health effects of radon - Wikipedia

    en.wikipedia.org/wiki/Health_effects_of_radon

    If it is suspected that a private well or drinking water may be affected by radon, the National Radon Program Services Hotline at 1-800-SOS-RADON can be contacted for information regarding state radon office phone numbers. State radon offices can provide additional resources, such as local laboratories that can test water for radon. [109]

  5. The Top 10 Most Popular Cars on Our Website in 2024 - AOL

    www.aol.com/top-10-most-popular-cars-130000712.html

    The significant improvements to the Model 3's design, refinement, and performance were enough for us to name it to our 10Best Cars list for 2025. The update also brought new life to the ...

  6. Category:Lists of cars - Wikipedia

    en.wikipedia.org/wiki/Category:Lists_of_cars

    List of Lancia concept cars; List of Lexus vehicles; List of Indianapolis 500 pace cars; List of Lincoln vehicles; List of most expensive cars sold at auction; List of Stellantis vehicles; List of longest consumer road vehicles

  7. Orders of magnitude (radiation) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude...

    Human internal radiation due to radon, varies with radon levels [8] 2 2 × 10 ^ 0: Acute-Head CT [7] 3 3 × 10 ^ 0: Annual: 0.34: USA average dose from all natural sources [6] 3.66 3.66 × 10 ^ 0: Annual: 0.42: USA average from all sources, including medical diagnostic radiation doses [citation needed] 4 4 × 10 ^ 0: Duration of the pregnancy: 0.6

  8. List of current automobile manufacturers by country - Wikipedia

    en.wikipedia.org/wiki/List_of_current_automobile...

    This is a list of notable current automobile manufacturers including buses & trucks manufacturers but excluding agricultural, construction, military & motorcycle vehicles with articles on Wikipedia by region.

  9. Top nicknames people give their cars revealed - AOL

    www.aol.com/news/2016-09-30-top-nicknames-people...

    In celebration of National Name Your Car Day, which falls on Oct. 2, Capital One released the results of a survey conducted with car owners -- and the findings are totally intriguing.