All other polonium isotopes are short-lived except polonium-210 (half-life about 138 days), which is the most commonly used isotope. It is prepared by bombarding bismuth with neutrons in a nuclear reactor.olonium has 34 isotopes, more than any other element. All of these isotopes are radioactive. The most stable, polonium-209, has a half-life of about 103 years. Polonium-208 (half-life about 3 years) is the only other polonium isotope with a half-life over one year.
Ashkenazi Jewish genetic diseases are a group of rare disorders that occur more often in people of Eastern European (Ashkenazi) Jewish heritage than in the general population.
2) Yes, according to the Bible, Jews are from the Middle East-but what do my genes say? I want to know if my 74% Jewish ancestry is from the Middle East or some other area (such as Khazars, Mongols or various European groups).This was the main objective in my request: To know how much of my ancestry is from the Middle East. European Jewish can mean all sorts of things.It's always been my understanding that Ashkenazi Jews are a blend between the original (Mideastern) Jews and local gentiles-but my results imply otherwise. want to know if my 74% Jewish ancestry is from the Middle East or some other area (such as Khazars, Mongols or various European groups). This was the main objective in my request: To know how much of my ancestry is from the Middle East.