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.
Ashkenazi Name Meaning. Jewish: nickname applied by Jews in Slavic countries for a Jew from Germany; it was also used to denote a Yiddish-speaking Jew who had settled in an area where non-Ashkenazic Jews were in the majority.Ashkenaz is a Biblical place name (Genesis 10:3, Jeremiah 51: 27), etymologically related to Greek Skythia âScythiaâ.ewish: nickname applied by Jews in Slavic countries for a Jew from Germany; it was also used to denote a Yiddish-speaking Jew who had settled in an area where non-Ashkenazic Jews were in the majority. Ashkenaz is a Biblical place name (Genesis 10:3, Jeremiah 51: 27), etymologically related to Greek Skythia âScythiaâ.